Patent US3626938A successfully refreshed from Google Patents.
US1087632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rock-drilling machine.
Assignee: Individual
•
Filing: 1912-06-17
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Granted: 1914-02-17
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Expires: 1932-06-17
Abstract
No abstract record available.
Inventors
- 👤 William S Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:55
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/066
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) | 1917-02-16 | 1917-08-18 | 1918-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-02-16 | 1921-08-18 | 1922-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-02-16 | 1925-08-18 | 1926-02-17 | $7700.00 | Window Closed / Lapsed |