US3396054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for metallic impregnation of carbon and graphite
Assignee: Mersen SA
•
Filing: 1964-03-13
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Granted: 1968-08-06
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Expires: 1984-03-13
Abstract
No abstract record available.
Inventors
- 👤 Gremion Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:50
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H; H01; H01B; H01B1/00; H01B1/02; H01B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1088734A
Cited
US2255120A
Cited
US2847332A
Cited
US2898243A
Cited
US2934460A
Cited
US3294572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |