Patent US1295262A successfully refreshed from Google Patents.
US1295262A
Expired / Lapsed
US
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Process of producing ammonia from alkali cyanid.
Assignee: Hercules Powder Co
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Filing: 1918-07-23
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Granted: 1919-02-25
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Expires: 1938-07-23
Abstract
No abstract record available.
Inventors
- 👤 Carl F Bierbauer
- 👤 Leon S Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:04
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/08
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) | 1922-02-24 | 1922-08-26 | 1923-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-02-24 | 1926-08-26 | 1927-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-02-24 | 1930-08-26 | 1931-02-25 | $7700.00 | Window Closed / Lapsed |