Patent US3772458A successfully refreshed from Google Patents.
US2036752A
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US
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Producing artificial structures, such as artificial silk, bands or the like, from viscose
Assignee: Individual
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Filing: 1931-11-05
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Granted: 1936-04-07
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Expires: 1951-11-05
Abstract
No abstract record available.
Inventors
- 👤 Herzog Reginald Oliver
- 👤 Hoffmann Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/20; D; D01; D01F; D01F2/00; D01F2/06; D01F2/22
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) | 1939-04-07 | 1939-10-07 | 1940-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-07 | 1943-10-07 | 1944-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-07 | 1947-10-07 | 1948-04-07 | $7700.00 | Window Closed / Lapsed |