US2965661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylic tin compounds
Assignee: Primerica Inc
•
Filing: 1956-05-09
•
Granted: 1960-12-20
•
Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Ramsden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/30; C10L1/305; C10L1/308; C07; C07F; C07F7/00; C07F7/22; C07F7/2208; C08; C08F; C08F30/00; C08F30/04; C08K; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
TIN COMPOUNDS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
TIN COMPOUNDS HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2356476A
Cited
US2683705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |