US3300440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester resins stabilized with thiophosphate esters
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1964-03-02
•
Granted: 1967-01-24
•
Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Dusan C Prevorsek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR IMPROVING THE STABILITY OF HIGHLY POLYMERIC CONDENSATION POLYESTERS DERIVED FROM A DICARBOXYLIC ACID AND A GLYCOL WHICH COMPRISES INCORPORATING IN THE POLYESTER RESIN FROM 0.01 TO 0.5 PERCENT BY WEIGHT BASED ON THE CONDENSATION POLYESTER OF A THIOPHOSPHATE COMPOUND WHICH HAS THE FORMULA
Claim 2
Dependent Claim
46 words
A PROCESS FOR IMPROVING THE STABILITY OF HIGHLY POLYMERIC CONDENSATION POLYESTERS DERIVED FROM A DICARBOXYLIC ACID AND A GLYCOL WHICH COMPRISES INCORPORATING IN THE POLYESTER RESIN FROM 0.01 TO 0.5 PERCENT BY WEIGHT BASED ON THE CONDENSATION POLYESTER OF A THIOPHOSPHATE COMPOUND WHICH HAS THE FORMULA
References Cited (Backward Citations)
US3057826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |