Patent US2040033A successfully refreshed from Google Patents.
US2040033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of plastic material from proteins
Assignee: RESINOX Corp
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Filing: 1933-09-01
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Granted: 1936-05-05
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Expires: 1953-09-01
Abstract
No abstract record available.
Inventors
- 👤 Sturken Oswald
- 👤 John C Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:07
CPC Classifications
C; C08; C08H; C08H1/00; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08K5/04; C08K5/07; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K2003/2237; C08K2003/2241
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) | 1939-05-05 | 1939-11-04 | 1940-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-05 | 1943-11-04 | 1944-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-05 | 1947-11-04 | 1948-05-05 | $7700.00 | Window Closed / Lapsed |