US3140414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Commutators
Assignee: Skjphidt & Boisen Kommutatorfa
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Filing: 1962-01-23
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Granted: 1964-07-07
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Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Skjphidt Holger
- 👤 Kaj Jens P Boisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:05
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/06; H01R43/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A COMMUTATOR IN COMBINATION: AN INSULATING CORE MEMBER, A PLURALITY OF CONDUCTIVE SEGMENTS EACH COMPRISING A BODY PORTION AND ANCHORING MEANS EMBEDDED IN SAID INSULATING INTERIOR CORE MEMBER, SAID BODY PORTION BEING OF SHEET MATERIAL FOLLOWING A CYLINDRICAL CURVATURE, AND SAID ANCHORING MEANS BEING IN THE FORM OF RIB MEANS INTEGRAL WITH SAID SHEET MATERIAL AND EXTENDING TRANSVERSELY OF SAID BODY PORTION AND HAVING OPPOSITE SURFACES EXTENDING IN PERIPHERAL DIRECTION AND FACING THE INTERIOR CURVED SURFACE OF SAID SHEET MATERIAL.
Claim 2
Dependent Claim
81 words
IN A COMMUTATOR IN COMBINATION: AN INSULATING CORE MEMBER, A PLURALITY OF CONDUCTIVE SEGMENTS EACH COMPRISING A BODY PORTION AND ANCHORING MEANS EMBEDDED IN SAID INSULATING INTERIOR CORE MEMBER, SAID BODY PORTION BEING OF SHEET MATERIAL FOLLOWING A CYLINDRICAL CURVATURE, AND SAID ANCHORING MEANS BEING IN THE FORM OF RIB MEANS INTEGRAL WITH SAID SHEET MATERIAL AND EXTENDING TRANSVERSELY OF SAID BODY PORTION AND HAVING OPPOSITE SURFACES EXTENDING IN PERIPHERAL DIRECTION AND FACING THE INTERIOR CURVED SURFACE OF SAID SHEET MATERIAL.
References Cited (Backward Citations)
AT176251B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |