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US2224922A
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Handling of continuous filaments
Assignee: Celanese Corp
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Filing: 1938-10-06
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Granted: 1940-12-17
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Expires: 1958-10-06
Abstract
No abstract record available.
Inventors
- 👤 Pool William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:30
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/08; B; B65; B65H; B65H49/00; B65H49/18; B65H49/20; B65H49/24; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6472
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) | 1943-12-17 | 1944-06-17 | 1944-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-17 | 1948-06-17 | 1948-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-17 | 1952-06-17 | 1952-12-17 | $7700.00 | Window Closed / Lapsed |