US3259768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine and method of making armature
Assignee: Printed Motors Inc
•
Filing: 1963-03-22
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Granted: 1966-07-05
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Robert P Burr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/56; H02K3/00; H02K3/04; H02K3/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
A DIRECT-CURRENT ELECTRICAL MOTOR COMPRISING: MEANS FOR SUPPLYING A MAGNETIC FIELD; A SUBSTANTIALLY NON-FERROUS ARMATURE COMPRISING A CYLINDRICAL, ROTATABLE INSULATING SHEET HAVING A CONDUCTIVE CIRCUIT COATING OVER THE SURFACE THEREOF AND HAVING AN OPEN PORTION DISPOSED IN SAID MAGNETIC FIELD; SAID COATING FORMING CONDUCTORS WHICH ARE SUBSTANTIALLY UNIFORMLY DISTRIBUTED OVER SUBSTANTIALLY THE ENTIRE SURFACE OF SAID INSULATING SHEET; MEANS ATTACHED TO SAID COATED SHEET SOLELY NEAR ONE END THEREOF FOR SUPPORTING SAID ARMATURE FOR ROTATION; AND DIRECT-CURRENT MEANS FOR SUPPLYING CURRENT FLOW THROUGH SAID COATING TO CAUSE DISPLACEMENT OF SAID ARMATURE.
References Cited (Backward Citations)
US1921112A
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US2020058A
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US2860267A
Cited
US3144574A
Cited
US3109113A
Cited
US3084420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |