Patent US2760948A successfully refreshed from Google Patents.
US2760948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester products, including di and triisobutenyl succinic acid as components
Assignee: PPG Industries Inc
•
Filing: 1952-01-30
•
Granted: 1956-08-28
•
Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene W Moffett
- 👤 Earl E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:24
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/31645; Y10T428/31786
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE COPOLYMER OF LOW POWER FACTOR, LOW DIELECTRIC CONSTANT AND LOW LOSS FACTOR AS DETERMINED BY ASTM SPECIFICATION D-150-47 AND BEING OF (A) AN ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUND CONTAINING THE GROUP >C=CH2 LINKED TO A NEGATIVE GROUP AND (B) A POLYESTER OF A DIHYDRIC ALCOHOL AND A MIXTURE OF AN ALPHA-BETA ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID AND AN ACID OF TH EGROUP CONSISTING OF DIISOBUTENYL SUCCINIC ACID AND TRIISOHUTENYL SUCCINIC ACID.
Claim 2
Dependent Claim
70 words
THE COPOLYMER OF LOW POWER FACTOR, LOW DIELECTRIC CONSTANT AND LOW LOSS FACTOR AS DETERMINED BY ASTM SPECIFICATION D-150-47 AND BEING OF (A) AN ETHYLENICALLY UNSATURATED POLYMERIZABLE COMPOUND CONTAINING THE GROUP >C=CH2 LINKED TO A NEGATIVE GROUP AND (B) A POLYESTER OF A DIHYDRIC ALCOHOL AND A MIXTURE OF AN ALPHA-BETA ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID AND AN ACID OF TH EGROUP CONSISTING OF DIISOBUTENYL SUCCINIC ACID AND TRIISOHUTENYL SUCCINIC ACID.
References Cited (Backward Citations)
US2255313A
Cited
US2283214A
Cited
US2230005A
Cited
US2297039A
Cited
US2407479A
Cited
US2454862A
Cited
US2475731A
Cited
US2593787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |