US3087466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic stapler
Assignee: BOSTITCH IND STAPLING MACHINE
•
Filing: 1956-10-09
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Granted: 1963-04-30
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Darrell R Tobias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:03
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A PNEUMATIC FASTENER DRIVER THAT HAS A BODY PROVIDED WITH A HANDLE HAVING A CAVITY, AND A CYLINDER HAVING A LARGER AND A SMALLER DIAMETER PART, A PISTON HAVING A SMALLER AND A LARGER DIAMETER PART DISPOSED IN SAID SMALLER AND LARGER PARTS OF SAID CYLINDER AND A PISTON CHAMBER SEPARATING SAID PARTS FROM EACH OTHER, A FASTENER DRIVING BLADE, MEANS CONNECTING SAID BLADE TO SAID PISTON, AN AIR CONDUCTOR EXTENDING FROM SAID HANDLE CAVITY TO SAID CYLINDER, SAID PARTS OF SAID PISTON HAVING WALLS AT THE ENDS OF SAID PISTON CHAMBER THAT ARE CONSTANTLY REACTED ON BY THE AIR UNDER PRESSURE TO THEREBY RETAIN SAID PISTON
Claim 2
Dependent Claim
108 words
IN A PNEUMATIC FASTENER DRIVER THAT HAS A BODY PROVIDED WITH A HANDLE HAVING A CAVITY, AND A CYLINDER HAVING A LARGER AND A SMALLER DIAMETER PART, A PISTON HAVING A SMALLER AND A LARGER DIAMETER PART DISPOSED IN SAID SMALLER AND LARGER PARTS OF SAID CYLINDER AND A PISTON CHAMBER SEPARATING SAID PARTS FROM EACH OTHER, A FASTENER DRIVING BLADE, MEANS CONNECTING SAID BLADE TO SAID PISTON, AN AIR CONDUCTOR EXTENDING FROM SAID HANDLE CAVITY TO SAID CYLINDER, SAID PARTS OF SAID PISTON HAVING WALLS AT THE ENDS OF SAID PISTON CHAMBER THAT ARE CONSTANTLY REACTED ON BY THE AIR UNDER PRESSURE TO THEREBY RETAIN SAID PISTON
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |