Patent US1044295A successfully refreshed from Google Patents.
US1044295A
Expired / Lapsed
US
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Process of producing silicon carbid.
Assignee: Individual
•
Filing: 1907-06-14
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Granted: 1912-11-12
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Expires: 1927-06-14
Abstract
No abstract record available.
Inventors
- 👤 Frank J Tone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:59
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/956; C01B32/963; C01B32/97; C04; C04B; C04B35/00; C04B35/515; C04B35/56; C04B35/565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1915-11-12 | 1916-05-13 | 1916-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-12 | 1920-05-13 | 1920-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-12 | 1924-05-13 | 1924-11-12 | $7700.00 | Window Closed / Lapsed |