US939900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet and drill extension.
Assignee: Individual
•
Filing: 1905-07-18
•
Granted: 1909-11-09
•
Expires: 1925-07-18
Abstract
No abstract record available.
Inventors
- 👤 Harry J Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:35
CPC Classifications
B; B23; B23G; B23G5/00; B23G5/02; B23G5/04; B23B; B23B31/00; B23B31/005; Y; Y10; Y10T; Y10T408/00; Y10T408/63; Y10T408/94
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) | 1912-11-08 | 1913-05-10 | 1913-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-08 | 1917-05-10 | 1917-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-08 | 1921-05-10 | 1921-11-09 | $7700.00 | Window Closed / Lapsed |