US3243093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring actuated nailers
Assignee: United Shoe Machinery Corp
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Filing: 1964-02-04
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Granted: 1966-03-29
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Expires: 1984-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Hans F Schaefer
- 👤 Frederic B Jennings
- 👤 John T Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:56
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
A FASTENER INSERTING TOOL OF THE IMPACT TYPE COMPRISING A HOUSING, A DRIVE R FOR ENGAGING A FASTENER, A REPETITIVELY RECIPROCABLE HAMMER FOR DELIVERING AXIAL IMPACT TO AN END OF THE DRIVER TO ADVANCE THE FASTENER STEPWISE INTO A WORK PIECE, MEANS ON THE HOUSING FOR AXIALLY GUIDING THE DRIVER AND THE HAMMER IN OPERATING RELATION, AND MOTOR-DRIVEN TORSIONAL SPRING MEANS HAVING A RECIPROCATING PORTION FOR OPERATING THE HAMMER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |