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:006274/0899   Pages: 2
Recorded: 10/13/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Total properties: 1
1
Patent #:
Issue Dt:
11/30/1993
Application #:
07940194
Filing Dt:
09/02/1992
Title:
ALKYL SUBSTITUTED POLYIMIDE, POLYAMIDE AND POLYAMIDE-IMIDE GAS SEPARATION MEMBRANES
Assignor
1
Exec Dt:
08/10/1992
Assignee
1
LEGAL-PATENTS
1007 MARKET STREET
WILMINGTON, DELAWARE 19898
Correspondence name and address
CARY A. LEVITT
E. I. DU PONT DE NEMOURS COMPANY
LEGAL-PATENTS
1007 MARKET STREET
WILMINGTON, DE 19898

Search Results as of: 05/31/2024 07:10 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