US2449654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: Individual
•
Filing: 1943-12-21
•
Granted: 1948-09-21
•
Expires: 1963-12-21
Abstract
No abstract record available.
Inventors
- 👤 Jessop Robert Edison Edouard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:36
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; Y; Y10; Y10S; Y10S464/00; Y10S464/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2105702A
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US2079460A
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US2146764A
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US2096597A
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US2220622A
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US2200641A
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US2290421A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |