US881075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety connection for taps and chucks.
Assignee: JERE C DUFRESNE
•
Filing: 1907-03-18
•
Granted: 1908-03-03
•
Expires: 1927-03-18
Abstract
No abstract record available.
Inventors
- 👤 John Hosking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/44; B23G1/46; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17923; Y10T279/34; Y10T279/3493; Y10T408/00; Y10T408/70
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) | 1911-03-03 | 1911-09-02 | 1912-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-03-03 | 1915-09-02 | 1916-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-03-03 | 1919-09-02 | 1920-03-03 | $7700.00 | Window Closed / Lapsed |