Patent US2037798A successfully refreshed from Google Patents.
US2037798A
Expired / Lapsed
US
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Knitting mechanism
Assignee: Celanese Corp
•
Filing: 1932-10-26
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Granted: 1936-04-21
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Expires: 1952-10-26
Abstract
No abstract record available.
Inventors
- 👤 Kinsella Edward
- 👤 Pratt John Gordon
- 👤 Kelsall Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:57
CPC Classifications
D; D04; D04B; D04B27/00; D04B27/06; D04B27/10; D04B27/24; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y02P70/62
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) | 1939-04-21 | 1939-10-21 | 1940-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-21 | 1943-10-21 | 1944-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-21 | 1947-10-21 | 1948-04-21 | $7700.00 | Window Closed / Lapsed |