Patent US1129509A successfully refreshed from Google Patents.
US1129509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing aluminum carbonitrid.
Assignee: International Minerals and Chemical Corp
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Filing: 1912-09-07
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Granted: 1915-02-23
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Expires: 1932-09-07
Abstract
No abstract record available.
Inventors
- 👤 Samuel Peacock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:45
CPC Classifications
C; C01; C01C; C01C3/00; C01C3/002; C01P; C01P2006/00; C01P2006/80
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) | 1918-02-22 | 1918-08-24 | 1919-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-02-22 | 1922-08-24 | 1923-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-02-22 | 1926-08-24 | 1927-02-23 | $7700.00 | Window Closed / Lapsed |