Patent US1234455A successfully refreshed from Google Patents.
US1234455A
Expired / Lapsed
US
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Driving connection for drill-spindles.
Assignee: Individual
•
Filing: 1915-11-22
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Granted: 1917-07-24
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Expires: 1935-11-22
Abstract
No abstract record available.
Inventors
- 👤 William R Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/38; Y; Y10; Y10S; Y10S411/00; Y10S411/919; Y10S464/00; Y10S464/901; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17786; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/60; Y10T403/602; Y10T403/604
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) | 1920-07-23 | 1921-01-22 | 1921-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-07-23 | 1925-01-22 | 1925-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-07-23 | 1929-01-22 | 1929-07-24 | $7700.00 | Window Closed / Lapsed |