US3217014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(carboxyphenyl) trimellitimide derivatives
Assignee: Standard Oil Co
•
Filing: 1963-06-25
•
Granted: 1965-11-09
•
Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Richard E Van Strien
- 👤 James R Eiszner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:01
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08G73/00; C08G73/06; C08G73/10; C08G73/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN AROMATIC DICARBOXYLIC ACID OF THE FORMULA:
Claim 2
Dependent Claim
7 words
AN AROMATIC DICARBOXYLIC ACID OF THE FORMULA:
References Cited (Backward Citations)
US2556664A
Cited
US2997462A
Cited
US3060152A
Cited
US3078228A
Cited
US3060191A
Cited
US3122559A
Cited
US3051724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |