US2872225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling for shafts
Assignee: Comptometer Corp
•
Filing: 1957-02-13
•
Granted: 1959-02-03
•
Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Emil C Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:17
CPC Classifications
F; F01; F01C; F01C17/00; F01C17/06; F16; F16D; F16D3/00; F16D3/02; F16D3/04; F16D3/10; F16D3/16; F16D3/50; F16D3/64; F16D3/68; F04; F04C; F04C15/00; F04C15/0057; F04C15/0061; F04C15/0073; Y; Y10; Y10S; Y10S279/00; Y10S279/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1532464A
Cited
US1772495A
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US1702057A
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FR750963A
Cited
GB434709A
Cited
US2079460A
Cited
US2171999A
Cited
US2433948A
Cited
DE808017C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |