US3252641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for fluid actuated fastener driving machines
Assignee: SPEEDFAST CORP
•
Filing: 1961-06-07
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Granted: 1966-05-24
•
Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Ciechanowski Alex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
IN A PNEUMATICALLY OPERATED FASTENING DEVICE HAVING, IN OPERATIVE RELATIONSHIP, AIR INLET MEANS, OPENABLE CONTROL VALVE MEANS, DRIVING MEANS, PILOT VALVE MEANS, PILOT VALVE AIR EXHAUST MEANS, AND MAIN AIR EXHAUST MEANS, A SAFETY DEVICE WHICH COMPRISES A NORMALLY CLOSED BLOCKING VALVE INTERVENING SAID PILOT VALVE AIR EXHAUST MEANS,
Claim 2
Dependent Claim
49 words
IN A PNEUMATICALLY OPERATED FASTENING DEVICE HAVING, IN OPERATIVE RELATIONSHIP, AIR INLET MEANS, OPENABLE CONTROL VALVE MEANS, DRIVING MEANS, PILOT VALVE MEANS, PILOT VALVE AIR EXHAUST MEANS, AND MAIN AIR EXHAUST MEANS, A SAFETY DEVICE WHICH COMPRISES A NORMALLY CLOSED BLOCKING VALVE INTERVENING SAID PILOT VALVE AIR EXHAUST MEANS,
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |