Patent US3209180A successfully refreshed from Google Patents.
US3209180A
Expired / Lapsed
US
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Electrically operated tool
Assignee: Duo Fast Corp
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Filing: 1964-05-21
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Granted: 1965-09-28
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Expires: 1984-05-21
Abstract
No abstract record available.
Inventors
- 👤 Richard H Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:18
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN AN ELECTRICALLY OPERATED TOOL, AN OPERATING WINDING HAVE AN AXIAL OPENING, ARMATURE MEANS MOVABLE THROUGH THE AXIAL OPENING, RESILIENT MEANS, LATCHING MEANS SECURING THE ARMATURE MEANS IN A GIVEN POSITION STRESSING THE RESILIENT MEANS, SO THAT THE RESILIENT MEANS BIASES THE ARMATURE MEANS FOR MOVEMENT IN A PREDETERMINED DIRECTION, THE ARMATURE MEANS BEING DISPOSED RELATIVE TO THE WINDING MEANS IN SAID GIVEN POSITION TO MOVE IN SAID PREDETERMINED DIRECTION WHEN THE WINDING MEANS IS ENER-
Claim 2
Dependent Claim
76 words
IN AN ELECTRICALLY OPERATED TOOL, AN OPERATING WINDING HAVE AN AXIAL OPENING, ARMATURE MEANS MOVABLE THROUGH THE AXIAL OPENING, RESILIENT MEANS, LATCHING MEANS SECURING THE ARMATURE MEANS IN A GIVEN POSITION STRESSING THE RESILIENT MEANS, SO THAT THE RESILIENT MEANS BIASES THE ARMATURE MEANS FOR MOVEMENT IN A PREDETERMINED DIRECTION, THE ARMATURE MEANS BEING DISPOSED RELATIVE TO THE WINDING MEANS IN SAID GIVEN POSITION TO MOVE IN SAID PREDETERMINED DIRECTION WHEN THE WINDING MEANS IS ENER-
References Cited (Backward Citations)
US2448959A
Cited
GB844337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |