US2611097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric controlled device for knitting machines
Assignee: Celanese Corp
•
Filing: 1946-11-26
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Granted: 1952-09-16
•
Expires: 1966-11-26
Abstract
No abstract record available.
Inventors
- 👤 Stanley William Ewart
- 👤 Edwards Cyril Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:45
CPC Classifications
D; D04; D04B; D04B35/00; D04B35/10; D04B35/14; D04B35/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1922188A
Cited
US2031503A
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US1946457A
Cited
US1886189A
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US2008410A
Cited
US2131895A
Cited
US2290257A
Cited
US2346240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |