US3191841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power driven stapling machine
Assignee: Individual
•
Filing: 1963-05-13
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Granted: 1965-06-29
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Expires: 1983-05-13
Abstract
No abstract record available.
Inventors
- 👤 Schafroth Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:13
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041; B25C5/00; B25C5/02; B25C5/0221; B25C5/0257; B25C5/0264; B25C5/0271; B25C5/10; B25C5/13; B27; B27F; B27F7/00; B27F7/17; B27F7/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A POWER DRIVEN MACHINE HAVING A STAPLING MECHANISM THEREIN, AN AIR CYLINDER CONNECTED TO SAID STAPLING MECHANISM, SAID AIR CYLINDER BEING OPERATIVELY CONNECTED TO A SOURCE OF COMPRESSED AIR, A TRIGGER PIVOTALLY MOUNTED ON SAID MACHINE, A PISTON SLIDABLY MOUNTED WITHIN SAID AIR CYLINDER, SAID PISTON HAVING A ROD OPERATIVELY CONNECTED TO SAID STAPLING MECHANISM, AN AIR CHAMBER ABOVE SAID PISTON, SAID AIR CHAMBER HAVING DOWNWARDLY EXTENDING MEMBERS THEREIN ADATPED TO CONTACT AND FORM AN UPPER STOP FOR SAID PISTON SUBSTANTIALLY INWARDLY OF THE PERPHERAL EDGE THEREOF, SAID PISTON BEING RESILIENTLY MOUNTED ON SAID ROD, VALVE MEANS FOR DIRECTING
Claim 2
Dependent Claim
99 words
A POWER DRIVEN MACHINE HAVING A STAPLING MECHANISM THEREIN, AN AIR CYLINDER CONNECTED TO SAID STAPLING MECHANISM, SAID AIR CYLINDER BEING OPERATIVELY CONNECTED TO A SOURCE OF COMPRESSED AIR, A TRIGGER PIVOTALLY MOUNTED ON SAID MACHINE, A PISTON SLIDABLY MOUNTED WITHIN SAID AIR CYLINDER, SAID PISTON HAVING A ROD OPERATIVELY CONNECTED TO SAID STAPLING MECHANISM, AN AIR CHAMBER ABOVE SAID PISTON, SAID AIR CHAMBER HAVING DOWNWARDLY EXTENDING MEMBERS THEREIN ADATPED TO CONTACT AND FORM AN UPPER STOP FOR SAID PISTON SUBSTANTIALLY INWARDLY OF THE PERPHERAL EDGE THEREOF, SAID PISTON BEING RESILIENTLY MOUNTED ON SAID ROD, VALVE MEANS FOR DIRECTING
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |