Patent US3949750A successfully refreshed from Google Patents.
US1765362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill-operating holder
Assignee: Individual
•
Filing: 1928-09-04
•
Granted: 1930-06-24
•
Expires: 1948-09-04
Abstract
No abstract record available.
Inventors
- 👤 George W Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:01
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/2012; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17487; Y10T279/17504; Y10T279/34; Y10T279/3406; Y10T279/3418; Y10T279/3487
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) | 1933-06-23 | 1933-12-23 | 1934-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-23 | 1937-12-23 | 1938-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-23 | 1941-12-23 | 1942-06-24 | $7700.00 | Window Closed / Lapsed |