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 Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:005691/0446   Pages: 4
Recorded: 05/02/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Total properties: 1
1
Patent #:
Issue Dt:
11/05/1991
Application #:
07371430
Filing Dt:
06/23/1989
Title:
CHROMIUM-FREE IMPREGNATED ACTIVATED CARBON FOR ADSORPTION OF TOXIC GASES AND/OR VAPORS
Assignors
1
Exec Dt:
04/26/1991
2
Exec Dt:
04/26/1991
Assignee
1
500 CALGON CARBON DRIVE
PITTSBURGH, PENNSYLVANIA 15205
Correspondence name and address
THOMAS C. WETTACH
P.O. BOX 2009
PITTSBURGH, PA 15230

Search Results as of: 09/22/2024 05:18 AM
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