US2826561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride resin compositions containing organotin mixed salts of a fatty acid and maleic acid
Assignee: Primerica Inc
•
Filing: 1953-11-09
•
Granted: 1958-03-11
•
Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Carl R Gloskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
A STABLE POLYVINYL CHLORIDE RESIN COMPOSITION CONTAINING INTIMATELY DISPERSED THEREIN AN ORGANOTIN MIXED SALT OF A FATTY ACID AND MALEIC ACID, WHEREIN TIN ATOMS ARE BONDED DIRECTLY TO ACID RADICALS OF BOTH SAID FATTY ACID AND MALEIC ACID THROUGH CARBOXY OXYGENS OF SAID ACIDS, THE ORGANOTIN PORTIONS OF SAID SALT BEING A RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYLTIN, ARYLTIN AND ARALKYLTIN RADICALS, AND THE MOLAR RATIO OF FATTY ACID RADICAL TO MALEIC ACID RADICAL IN SAID COMPOSITION BEING IN THE RANGE OF 2:1 TO 3:1.
References Cited (Backward Citations)
US2715111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |