US1371750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible shaft-coupling
Assignee: Individual
•
Filing: 1920-04-24
•
Granted: 1921-03-15
•
Expires: 1940-04-24
Abstract
No abstract record available.
Inventors
- 👤 William R Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:48
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/38; F16D3/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/49938; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32041; Y10T403/32049; Y10T403/60; Y10T403/602; Y10T403/604; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079
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) | 1924-03-14 | 1924-09-13 | 1925-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-14 | 1928-09-13 | 1929-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-14 | 1932-09-13 | 1933-03-15 | $7700.00 | Window Closed / Lapsed |