Patent US2796412A successfully refreshed from Google Patents.
US2796412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organotin derivatives of hydroxy and phenolic acids
Assignee: Primerica Inc
•
Filing: 1952-07-02
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Granted: 1957-06-18
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Expires: 1972-07-02
Abstract
No abstract record available.
Inventors
- 👤 Elliott L Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C07; C07F; C07F7/00; C07F7/22; C07F7/2224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A STABLE VINYL RESIN COMPOSITION CONTAINING INTIMATELY DISPERSED THEREIN A COMPOUND HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
15 words
A STABLE VINYL RESIN COMPOSITION CONTAINING INTIMATELY DISPERSED THEREIN A COMPOUND HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2252664A
Cited
US2476422A
Cited
US2479918A
Cited
US2604483A
Cited
US2631990A
Cited
US2700675A
Cited
US2648650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |