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Patent US2310759A successfully refreshed from Google Patents.
US2310759A
Expired / Lapsed
US
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Drill with adjustable head
Assignee: Individual
•
Filing: 1940-01-06
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Granted: 1943-02-09
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Expires: 1960-01-06
Abstract
No abstract record available.
Inventors
- 👤 Ira C Clawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:31
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/06; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32327; Y10T403/32336; Y10T408/00; Y10T408/65; Y10T408/91; Y10T408/93
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) | 1946-02-08 | 1946-08-10 | 1947-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-08 | 1950-08-10 | 1951-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-08 | 1954-08-10 | 1955-02-09 | $7700.00 | Window Closed / Lapsed |