US2000372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning bobbin
Assignee: IG Farbenindustrie AG
•
Filing: 1931-10-21
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Granted: 1935-05-07
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Expires: 1951-10-21
Abstract
No abstract record available.
Inventors
- 👤 Beck Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:49
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H75/18; B65H75/24; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/511; B65H2701/5112; B65H2701/5114; B65H2701/512; B65H2701/5122; B65H2701/5124; B65H2701/5126; B65H2701/513; B65H2701/5132
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) | 1938-05-06 | 1938-11-05 | 1939-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-06 | 1942-11-05 | 1943-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-06 | 1946-11-05 | 1947-05-07 | $7700.00 | Window Closed / Lapsed |