Patent US2612053A successfully refreshed from Google Patents.
US3200359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resistor
Assignee: Spectrol Electronics Corp
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Filing: 1962-09-12
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Granted: 1965-08-10
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Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 Warren D Hulbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:45
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A VARIABLE RESISTOR COMPRISING: AN ELECTRICALLY NONCONDUCTIVE BASE MEMBER DEFINING AN OPENING THERETHROUGH AT SUBSTANTIALLY THE CENTER THEREOF; A RESISTANCE ELEMENT MOUNTED UPON ON SIDE OF SAID BASE MEMBER; ELECTRICALLY CONDUCTIVE MEANS EXTENDING THROUGH SAID OPENING IN SUPPORTING ENGAGEMENT WITH SAID BASE MEMBER AND INCLUDING A RELATIVELY RIGID ELECTRICAL LEAD AFFIXED RIGIDLY THERETO, SAID LEAD BEING THE ONLY MOUNTING SUPPORT FOR SAID RESISTOR, SAID BASE AND SAID ELECTRICALLY CONDUCTIVE MEANS BEING RELATIVELY ROTATABLE; A FLEXIBLE ELECTRICAL LEAD CONNECTED TO SAID RESISTANCE ELEMENT AND ADAPTED TO PERMIT SAID RELATIVE ROTATION; AND ELECTRICALLY CONDUCTIVE WIPER MEANS RIGIDLY ELECTRICALLY CONNECTED TO AND AFFIXED TO SAID ELECTRICALLY CONDUCTIVE MEANS AND DISPOSED ON SAID ONE SIDE OF SAID BASE MEMBEER FOR WIPING CONTACT WITH SAID RESISTANCE ELEMENT DURING SAID RELATIVE ROTATIONAL MOVEMENT.
Claim 2
Dependent Claim
127 words
A VARIABLE RESISTOR COMPRISING: AN ELECTRICALLY NONCONDUCTIVE BASE MEMBER DEFINING AN OPENING THERETHROUGH AT SUBSTANTIALLY THE CENTER THEREOF; A RESISTANCE ELEMENT MOUNTED UPON ON SIDE OF SAID BASE MEMBER; ELECTRICALLY CONDUCTIVE MEANS EXTENDING THROUGH SAID OPENING IN SUPPORTING ENGAGEMENT WITH SAID BASE MEMBER AND INCLUDING A RELATIVELY RIGID ELECTRICAL LEAD AFFIXED RIGIDLY THERETO, SAID LEAD BEING THE ONLY MOUNTING SUPPORT FOR SAID RESISTOR, SAID BASE AND SAID ELECTRICALLY CONDUCTIVE MEANS BEING RELATIVELY ROTATABLE; A FLEXIBLE ELECTRICAL LEAD CONNECTED TO SAID RESISTANCE ELEMENT AND ADAPTED TO PERMIT SAID RELATIVE ROTATION; AND ELECTRICALLY CONDUCTIVE WIPER MEANS RIGIDLY ELECTRICALLY CONNECTED TO AND AFFIXED TO SAID ELECTRICALLY CONDUCTIVE MEANS AND DISPOSED ON SAID ONE SIDE OF SAID BASE MEMBEER FOR WIPING CONTACT WITH SAID RESISTANCE ELEMENT DURING SAID RELATIVE ROTATIONAL MOVEMENT.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |