Patent US2737505A successfully refreshed from Google Patents.
US2737505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric chlorotrifluoroethylene stabilized with small amounts of chromic oxide
Assignee: General Electric Co
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Filing: 1953-03-03
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Granted: 1956-03-06
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Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Finholt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:56
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A COMPOSITION OF MATTER HAVING IMPROVED FLEX LIFE AT ELEVATED TEMPERATURES COMPRISING (1) SOLID POLYCHLOROTRIFLUOROETHYLENE AND (2) FROM 0.001 TO 4.0 PERCENT, BY WEIGHT, CHROMIC OXIDE, BASED ON THE WEIGHT OF THE POLYCHLOROTRIFLUOROETHYLENE.
Claim 2
Dependent Claim
33 words
A COMPOSITION OF MATTER HAVING IMPROVED FLEX LIFE AT ELEVATED TEMPERATURES COMPRISING (1) SOLID POLYCHLOROTRIFLUOROETHYLENE AND (2) FROM 0.001 TO 4.0 PERCENT, BY WEIGHT, CHROMIC OXIDE, BASED ON THE WEIGHT OF THE POLYCHLOROTRIFLUOROETHYLENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |