US3387980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant inorganic bodies
Assignee: Raybestos Manhattan Inc
•
Filing: 1965-04-07
•
Granted: 1968-06-11
•
Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 James T Trainor
- 👤 Edward R Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:17
CPC Classifications
C; C04; C04B; C04B26/00; C04B28/00; C04B28/34; C04B2111/00; C04B2111/00241; C04B2111/00362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2680077A
Cited
US2788286A
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US3179489A
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US3029283A
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US3164556A
Cited
US3206494A
Cited
US3146228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |