US2555484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprag type one-way clutch
Assignee: Formsprag Co
•
Filing: 1945-07-02
•
Granted: 1951-06-05
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 Ivor J Gruenberg
- 👤 Carl K Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:10
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07; F16D41/076; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/4956; Y10T29/49563
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075130A
Cited
US1923283A
Cited
US2035925A
Cited
US2366842A
Cited
US2364280A
Cited
US2366843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |