US3150318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical indicating device including a cylindrical housing with inwardly curved end walls serving as bearing supports
Assignee: Individual
•
Filing: 1962-12-21
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Granted: 1964-09-22
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Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Louis M Friedmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:26
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN INDICATING DEVICE FOR THE MAGNITUDE OF AN ELECTRICAL VARIABLE, COMPRISING A SUBSTANTIALLY CLOSED HOUSING OF GENERALLY CYLINDRICAL CONFIGURATION, MEANS IN SAID HOUSING FOR PRODUCING A FIELD FORCE IN RESPONSE TO SAID VARIABLE, A ROTATABLE DISK COAXIALLY DISPOSED IN SAID HOUSING, SAID DISK HAVING A PORTION ATTRACTABLE BY SAID FIELD FORCE WHEREBY A TORQUE COMMENSURATE WITH SAID FORCE IS EXERTED UPON SAID DISK, SAID DISK BEING PROVIDED WITH A CENTRAL SHAFT, BEARING MEANS IN SAID HOUSING SUPPORTING SAID SHAFT, SAID
Claim 2
Dependent Claim
80 words
AN INDICATING DEVICE FOR THE MAGNITUDE OF AN ELECTRICAL VARIABLE, COMPRISING A SUBSTANTIALLY CLOSED HOUSING OF GENERALLY CYLINDRICAL CONFIGURATION, MEANS IN SAID HOUSING FOR PRODUCING A FIELD FORCE IN RESPONSE TO SAID VARIABLE, A ROTATABLE DISK COAXIALLY DISPOSED IN SAID HOUSING, SAID DISK HAVING A PORTION ATTRACTABLE BY SAID FIELD FORCE WHEREBY A TORQUE COMMENSURATE WITH SAID FORCE IS EXERTED UPON SAID DISK, SAID DISK BEING PROVIDED WITH A CENTRAL SHAFT, BEARING MEANS IN SAID HOUSING SUPPORTING SAID SHAFT, SAID
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |