Patent US3892236A successfully refreshed from Google Patents.
US2882765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drills
Assignee: Individual
•
Filing: 1956-03-27
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Granted: 1959-04-21
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Rudolf W Andreasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; B23B51/066; Y; Y10; Y10S; Y10S408/00; Y10S408/705; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304981A
Cited
US2606464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |