Patent US3063969A successfully refreshed from Google Patents.
US3063969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-vinyl trimellitate and/or anhydride and polymers thereof
Assignee: Standard Oil Co
•
Filing: 1959-09-14
•
Granted: 1962-11-13
•
Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 James R Stephens
- 👤 Richard E Van Strien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C07; C07C; C07C67/00; C07C67/10; C07C69/00; C07C69/76; C08F18/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
AS A NEW COMPOSITION OF MATTER, A VINYL DERIVATIVE OF TRIMELLITIC ANHYDRIDE SELECTED FROM CLASS CONSISTING OF 4-VINYL TRIMELLITATE ANHYDRIDE AND 4-VINYL TRIMELLITATE.
Claim 2
Dependent Claim
23 words
AS A NEW COMPOSITION OF MATTER, A VINYL DERIVATIVE OF TRIMELLITIC ANHYDRIDE SELECTED FROM CLASS CONSISTING OF 4-VINYL TRIMELLITATE ANHYDRIDE AND 4-VINYL TRIMELLITATE.
References Cited (Backward Citations)
US2245131A
Cited
US2145345A
Cited
US2332896A
Cited
US2324426A
Cited
US2557639A
Cited
US2595852A
Cited
US2756219A
Cited
US2612491A
Cited
US2911416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |