US2435137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long-shaft stud driver
Assignee: AIRCRAFT SCREW PROD CO
•
Filing: 1945-01-25
•
Granted: 1948-01-27
•
Expires: 1965-01-25
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Geertsema
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/10; B25B23/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190913979A
Cited
US1463497A
Cited
US1492466A
Cited
US1615201A
Cited
US2069527A
Cited
US2257089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |