US2803729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistors
Assignee: Individual
•
Filing: 1953-03-03
•
Granted: 1957-08-20
•
Expires: 1973-03-03
Abstract
No abstract record available.
Inventors
- 👤 Wilbur M Kohring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:06
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/024; H01C1/026; H01C17/00; H01C17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN MAKING RESISTORS, FORMING A STABLE RESISTOR BY THE COORDINATED OPERATIONS OF APPLYING DEPOSITED METAL IN SUCCESSIVE COATS OF DIFFERENT METALS TO AN INSULATION CORE, ADJUSTING TO DESIRED RESISTANCE VALUE BY REMOVAL OF MINOR PORTIONS OF THE METAL AS APPROPRIATE, APPLYING END CAPS, ONE HAVING AN OPENING TO THE INTERIOR, APPLYING A RELATIVELY THIN PREFORMED COVER OF INSULATION OVER THE RESISTANCE FROM END CAP TO END CAP, WITHDRAWING AIR FROM WITHIN AND SUPPLYING A PERMANENTLY FLUID INSULATIVE MATERIAL, CLOSING THE CAP, AND MOLDING ON AN INSULATION ENCASEMENT OVERALL.
Claim 2
Dependent Claim
88 words
IN MAKING RESISTORS, FORMING A STABLE RESISTOR BY THE COORDINATED OPERATIONS OF APPLYING DEPOSITED METAL IN SUCCESSIVE COATS OF DIFFERENT METALS TO AN INSULATION CORE, ADJUSTING TO DESIRED RESISTANCE VALUE BY REMOVAL OF MINOR PORTIONS OF THE METAL AS APPROPRIATE, APPLYING END CAPS, ONE HAVING AN OPENING TO THE INTERIOR, APPLYING A RELATIVELY THIN PREFORMED COVER OF INSULATION OVER THE RESISTANCE FROM END CAP TO END CAP, WITHDRAWING AIR FROM WITHIN AND SUPPLYING A PERMANENTLY FLUID INSULATIVE MATERIAL, CLOSING THE CAP, AND MOLDING ON AN INSULATION ENCASEMENT OVERALL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |