US2996763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond material
Assignee: General Electric Co
•
Filing: 1956-01-31
•
Granted: 1961-08-22
•
Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert H Wentorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:44
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B01J3/065; B30; B30B; B30B11/00; B30B11/004; B01J2203/00; B01J2203/06; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/068; Y; Y10; Y10S; Y10S425/00; Y10S425/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |