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US1359080A
Expired / Lapsed
US
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Process for the manufacture of alkaliamids
Assignee: Roessler and Hasslacher Chemical Co
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Filing: 1915-01-29
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Granted: 1920-11-16
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Expires: 1935-01-29
Abstract
No abstract record available.
Inventors
- 👤 Liebknecht Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:16
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/082; C01B21/087; C01B21/092; C01B21/0923; C01B21/0926
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) | 1923-11-16 | 1924-05-17 | 1924-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-16 | 1928-05-17 | 1928-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-16 | 1932-05-17 | 1932-11-16 | $7700.00 | Window Closed / Lapsed |