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Patent US2235480A successfully refreshed from Google Patents.
US2235480A
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US
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Amidelike derivatives and process of making the same
Assignee: FIRM OF SOCIETY OF CHEMICAL INDUSTRY IN BASLE
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Filing: 1937-11-08
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Granted: 1941-03-18
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Expires: 1957-11-08
Abstract
No abstract record available.
Inventors
- 👤 Graenacher Charles
- 👤 Ackermann Franz
- 👤 Bruengger Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:53
CPC Classifications
C; C09; C09B; C09B69/00; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/42; C09B1/46; C09B1/473; C09B3/00; C09B3/22; C09B3/30; C09B3/38; C09B43/00; C09B43/12; C09B43/136; C09B43/16; C09B55/00; C09B6/00; D; D06; D06P; D06P1/00; D06P1/44; D06P1/655; D06P1/66
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) | 1944-03-17 | 1944-09-16 | 1945-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-17 | 1948-09-16 | 1949-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-17 | 1952-09-16 | 1953-03-18 | $7700.00 | Window Closed / Lapsed |