Patent US3245446A successfully refreshed from Google Patents.
US3245446A
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Screw driver with a screw holding device
Assignee: MORIFUJI HAGURUMA SEISAKUSHO K
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Filing: 1963-09-19
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Granted: 1966-04-12
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Expires: 1983-09-19
Abstract
No abstract record available.
Inventors
- 👤 Morifuji Noboru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:25
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/08; B25B23/10; B25B23/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SCREW DRIVER HAVING A SCREW DRIVING END, A SHANK PORTION AND A SCREW HOLDING DEVICE MOUNTED THEREON CHARACTERIZED BY SAID SCREW HOLDING DEVICE COMPRISING A TUBLAR MEMBER, MEANS MOUNTING SAID TUBULAR MEMBER ON THE SHANK PORTION OF THE SCREW DRIVER IN AXIALLY FIXED RELATION THEREWITH, SAID TUBULAR MEMBER INCLUDING AN ELASTIC RECESSED END PORTION ADAPTED TO RECEIVE AND GRIP THE HEAD OF A SCREW AND A BELLOWS SECTION INWARDLY OF SAID END PORTION FOR LONGITUDINAL FLEXIBILITY, SAID END PORTION BEING ELASTICALLY URGED TO A NORMAL POSITION EXTENDING BEYOND SAID SCREW DRIVING END OF THE SCREW DRIVER AND BEING FLEXI-
Claim 2
Dependent Claim
100 words
A SCREW DRIVER HAVING A SCREW DRIVING END, A SHANK PORTION AND A SCREW HOLDING DEVICE MOUNTED THEREON CHARACTERIZED BY SAID SCREW HOLDING DEVICE COMPRISING A TUBLAR MEMBER, MEANS MOUNTING SAID TUBULAR MEMBER ON THE SHANK PORTION OF THE SCREW DRIVER IN AXIALLY FIXED RELATION THEREWITH, SAID TUBULAR MEMBER INCLUDING AN ELASTIC RECESSED END PORTION ADAPTED TO RECEIVE AND GRIP THE HEAD OF A SCREW AND A BELLOWS SECTION INWARDLY OF SAID END PORTION FOR LONGITUDINAL FLEXIBILITY, SAID END PORTION BEING ELASTICALLY URGED TO A NORMAL POSITION EXTENDING BEYOND SAID SCREW DRIVING END OF THE SCREW DRIVER AND BEING FLEXI-
References Cited (Backward Citations)
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |