US2816996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance production
Assignee: Individual
•
Filing: 1953-12-14
•
Granted: 1957-12-17
•
Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Wilbur M Kohring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/22; H01C17/24; H01C17/245; H01B; H01B1/00; H01C17/06; H01C17/075; H01C17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A PROCESS OF THE CHARACTER DESCRIBED, MAKING A RESISTOR BY COATING CERAMIC GLAZE COMPOSITION ON A MULTIUNIT CYLINDRICAL CERAMIC BODY HAVING SPACED PERIPHERAL GROOVES, FIRING TO FUSION OF THE GLAZE, COATING THE GLAZED SURFACE WITH A LACQUER, APPLYING SILVER COATING ABOUT THE GROOVES, VACUUM-DEPOSITING A RESISTANCE METAL, SEVERING THE BODY AT THE GROOVES TO FORM A PLURALITY OF UNITS, APPLYING CAP TERMINALS TO THE UNIT ENDS, REMOVING METAL FROM THE RESISTANCE FILM TO DESIRED PRECISION, APPLYING ON OVERALL COVERING OF SYNTHETIC RESIN INSULATION, AND CURING.
Claim 2
Dependent Claim
86 words
IN A PROCESS OF THE CHARACTER DESCRIBED, MAKING A RESISTOR BY COATING CERAMIC GLAZE COMPOSITION ON A MULTIUNIT CYLINDRICAL CERAMIC BODY HAVING SPACED PERIPHERAL GROOVES, FIRING TO FUSION OF THE GLAZE, COATING THE GLAZED SURFACE WITH A LACQUER, APPLYING SILVER COATING ABOUT THE GROOVES, VACUUM-DEPOSITING A RESISTANCE METAL, SEVERING THE BODY AT THE GROOVES TO FORM A PLURALITY OF UNITS, APPLYING CAP TERMINALS TO THE UNIT ENDS, REMOVING METAL FROM THE RESISTANCE FILM TO DESIRED PRECISION, APPLYING ON OVERALL COVERING OF SYNTHETIC RESIN INSULATION, AND CURING.
References Cited (Backward Citations)
US2357473A
Cited
US2461878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |