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Patent US3348432A successfully refreshed from Google Patents.
US3348432A
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Portable electric drill with chuck key retaining structure
Assignee: Porter Cable Corp
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Filing: 1965-10-20
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Granted: 1967-10-24
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Iii Joseph D Kieffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:41
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/001; B23B45/006; Y; Y10; Y10T; Y10T408/00; Y10T408/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PORTABLE ELECTRIC DRILL HAVING A KEY-OPERATED CHUCK ON THE OUTPUT SPINDLE THEREOF, SAID DRILL INCLUDING A CASING FORMED WITH A HANDLE RECEIVING SURFACE, A HANDLE EXTENDING RADIALLY FROM SAID CASING, SAID HANDLE BEING FORMED WITH AN END PORTION HAVING A SURFACE ABUTTING SAID HANDLE RECEIVING SURFACE ON SAID CASING AND BEING DETACHABLY SECURED THERETO, A SLOT EXTENDING TRANSVERSELY OF SAID ABUTTING SURFACES, SAID SLOT BEING OPEN AT ONE END AND BEING
Claim 2
Dependent Claim
72 words
A PORTABLE ELECTRIC DRILL HAVING A KEY-OPERATED CHUCK ON THE OUTPUT SPINDLE THEREOF, SAID DRILL INCLUDING A CASING FORMED WITH A HANDLE RECEIVING SURFACE, A HANDLE EXTENDING RADIALLY FROM SAID CASING, SAID HANDLE BEING FORMED WITH AN END PORTION HAVING A SURFACE ABUTTING SAID HANDLE RECEIVING SURFACE ON SAID CASING AND BEING DETACHABLY SECURED THERETO, A SLOT EXTENDING TRANSVERSELY OF SAID ABUTTING SURFACES, SAID SLOT BEING OPEN AT ONE END AND BEING
References Cited (Backward Citations)
US1647396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |