US3205387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Undercut commutator
Assignee: Ford Motor Co
•
Filing: 1962-12-20
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Granted: 1965-09-07
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Expires: 1982-12-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:32
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A COMMUTATOR FOR A DYNAMOELECTRIC MACHINE COMPRISING A FIRST CONDUCTIVE SEGMENT, A SECOND CONDUCTIVE SEGMENT, AN INSULATOR SEGMENT POSITIONED BETWEEN SAID FIRST CONDUCTIVE SEGMENT AND SAID SECOND CONDUCTIVE SEGMENT, A DOVETAIL SLOT POSITIONED IN SAID COMMUTATOR AT SAID INSULATOR SEGMENT, THE NARROW PORTION OF SAID DOVETAIL SLOT BEING POSITIONED AT THE SURFACE OF SAID COMMUTATOR AND BEING WIDER THAN AND SPANNING SAID INSULATOR SEGMENT, SAID DOVETAIL SLOT EXTENDING OVER THE LENGTH OF THE COMMUTATOR ADAPTED TO BE CONTACTED BY AN ELECTRICAL CONTACT BRUSH.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |