skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : OSTROWSKY, EFREM M.
Total Assignments: 16
Assignment: 1
Reel/Frame:004039/0761   Pages: 1
Recorded: 09/27/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
05/15/1981
Assignee
1
ETHYL PRODUCTS COMPANY, A CORP OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4369889
NONE
06271775
Correspondence name and address
JOHN F. SIEBERTH
PATENT & TRADEMARK DIV.
ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 2
Reel/Frame:004047/0304   Pages: 1
Recorded: 09/30/1982
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
05/15/1981
Assignee
1
ETHYL PRODUCTS COMPANY, RICHMOND, VA, A CORP. OF
VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4427126
NONE
06271776
Correspondence name and address
JOHN F. SIEBERTH
PATENT & TRADEMARK DIV.
ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 3
Reel/Frame:004094/0829   Pages: 1
Recorded: 02/17/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
07/07/1981
Assignee
1
ETHYL PRODUCTS COMPANY A CORP OF VA.
RICHMOND,, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4382521
NONE
06284230
Correspondence name and address
JOHN F. SIEBERTH
PATENT & TRADEMARK DIVISION
ETHYL CORPORATION
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 4
Reel/Frame:004165/0724   Pages: 1
Recorded: 09/06/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
07/07/1981
Assignee
1
ETHYL PRODUCTS COMPANY, A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4414705
NONE
06284489
Correspondence name and address
JOHN F. SIEBERTH
PAT. & TRADEMARK DIV., ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 5
Reel/Frame:004094/0830   Pages: 1
Recorded: 02/17/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
08/13/1981
Assignee
1
ETHYL PRODUCTS COMPANY, A CORP OF VA.
RICHMOND,, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4381840
NONE
06295576
Correspondence name and address
JOHN F. SIEBERTH
PATENT & TRADEMARK DIV.
ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 6
Reel/Frame:004140/0320   Pages: 1
Recorded: 06/23/1983
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
11/09/1981
Assignee
1
ETHYL PRODUCTS COMPANY
A VA CORP
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4402418
NONE
06325490
Correspondence name and address
JOHN F. SIEBERTH
PAT. & TRADEMARK DIV.
ETHYL CORP., 451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 7
Reel/Frame:004214/0774   Pages: 1
Recorded: 01/25/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
LUENSER, WERNER R.
Exec Dt:
07/08/1982
2
OSTROWSKY, EFREM M.
Exec Dt:
07/08/1982
Assignee
1
ETHYL PRODUCTS COMPANY
A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4462502
NONE
06400746
Correspondence name and address
JOHN F. SIEBERTH
ETHYL CORP., PAT. & TRADEMARK DIV.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 8
Reel/Frame:004214/0773   Pages: 1
Recorded: 01/25/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
09/16/1982
Assignee
1
ETHYL PRODUCTS COMPANY
A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4470513
NONE
06422014
Correspondence name and address
JOHN F. SIEBERTH
ETHYL CORPORATION
451 FLORIDA BLVD.,
BATON ROUGE, LA 70801
Assignment: 9
Reel/Frame:004214/0798   Pages: 1
Recorded: 01/25/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
09/16/1982
Assignee
1
ETHYL PRODUCTS COMPANY
A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4478343
NONE
06422096
Correspondence name and address
JOHN F. SIEBERTH
PATENT & TRADEMARK DIVISION
ETHYL CORPORATION
451 FLORIDA BLVD.,
BATON ROUGE, LA 70801
Assignment: 10
Reel/Frame:004214/0799   Pages: 1
Recorded: 01/25/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
11/30/1982
Assignee
1
ETHYL PRODUCTS COMPANY
A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4458821
NONE
06448064
Correspondence name and address
JOHN F. SIEBERTH
ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 11
Reel/Frame:004214/0801   Pages: 1
Recorded: 01/25/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
11/30/1982
Assignee
1
ETHYL PRODUCTS COMPANY
A CORP. OF VA
RICHMOND, VIRGINIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4458822
NONE
06448065
Correspondence name and address
JOHN F. SIEBERTH
ETHYL CORP.
451 FLORIDA BLVD.
BATON ROUGE, LA 70801
Assignment: 12
Reel/Frame:004242/0346   Pages: 1
Recorded: 04/09/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
01/31/1984
Assignee
1
SEAQUIST CLOSURES, A DIV. OF PITWAY CORPORATION, A PA CORP.
PENNSYLVANIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4487324
NONE
06578026
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE, SUTKER
& MILNAMOW LTD.,
1800 PRUDENTIAL PLAZA
CHICAGO, IL 60601
Assignment: 13
Reel/Frame:004405/0043   Pages: 1
Recorded: 05/28/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
03/01/1985
Assignee
1
PITTWAY CORPORATION, A PA CORP.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
D292889
NONE
06710367
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE,
SUTKER & MILNAMOW, LTD.,
1800 PRUDENTIAL PLAZA
CHICAGO, IL 60601
Assignment: 14
Reel/Frame:004767/0530   Pages: 1
Recorded: 10/07/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
08/24/1987
Assignee
1
SEAQUIST CLOSURES, A DIVISION OF PITTWAY CORPORATION, A CORP. OF PA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4776501
NONE
07091542
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE, SUTKER &
MILNAMOW, LTD.
1800 PRUDENTIAL PLAZA
CHICAGO, IL 60601
Assignment: 15
Reel/Frame:004927/0880   Pages: 1
Recorded: 08/08/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
OSTROWSKY, EFREM M.
Exec Dt:
06/01/1988
Assignee
1
SEAQUIST CLOSURES, A DIVISION OF PITTWAY CORPORATION, A PA. CORP.
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4887747
NONE
07204166
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE, SUTKER
& MILNAMOW, LTD.
1800 PRUDENTIAL PLAZA
CHICAGO, IL 60601
Assignment: 16
Reel/Frame:005481/0273   Pages: 2
Recorded: 10/18/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
OSTROWSKY, EFREM M.
Exec Dt:
05/16/1989
2
MOORE, DAVID G.
Exec Dt:
05/16/1989
Assignee
1
PITTWAY CORPORATION, A CORP. OF PA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4986453
NONE
07352778
Correspondence name and address
DRESSLER, GOLDSMITH, SHORE,
SUTKER & MILNAMOW, LTD.
SUITE 4700 TWO PRUDENTIAL PLAZA
180 NORTH STETSON AVENUE
CHICAGO, IL 60601-6707

Search Results as of: 05/29/2024 07:56 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT