Patent US2887526A successfully refreshed from Google Patents.
US2887526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoro-carbon ceramic and glass products
Assignee: UNITED STATES GASKET Co
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Filing: 1952-02-26
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Granted: 1959-05-19
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Expires: 1972-02-26
Abstract
No abstract record available.
Inventors
- 👤 Merritt A Rudner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:08
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
AN ARTICLE OF MANUFACTURE COMPRISING A PLASTIC COMPONENT OF A POLYMER OF TETRAFLUOROETHYLENE AND A CERAMIC COMPONENT COMPRISING FINELY DIVIDED POWDERED GLASS PARTICLES, SAID ARTICLE HAVING A MAJOR PROPORTION OF THE CERAMIC COMPONENT AT A SURFACE THEREOF AND THROUGHOUT TRANSITION REGION ADJACENT SAID SURFACE HAVING A HOMOGENEOUS MIXTURE OF SAID COMPONENT WITH A DE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |