US3178792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for hot pressing ceramic material
Assignee: Bausch and Lomb Inc
•
Filing: 1963-03-01
•
Granted: 1965-04-20
•
Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Frederic B B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/40; B28B7/44; B28B3/00; B28B3/02; B28B3/025; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1541357A
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US2305433A
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US2415462A
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US2386604A
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US2393130A
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US3055058A
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |