US2887686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener driving apparatus
Assignee: Duo Fast Corp
•
Filing: 1956-04-16
•
Granted: 1959-05-26
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Oscar A Wandel
- 👤 Richard H Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:30
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US695415A
Cited
US879805A
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US1703458A
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US1822248A
Cited
US1874133A
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US1874372A
Cited
US2546354A
Cited
US2713165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |