US2934736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistor
Assignee: Corning Glass Works
•
Filing: 1957-10-08
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Granted: 1960-04-26
•
Expires: 1977-10-08
Abstract
No abstract record available.
Inventors
- 👤 James K Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:18
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/006; C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN ELECTRICAL RESISTOR COMPRISING A GLASS BODY SUBSTANTIALLY FREE FROM ALKALI METAL IONS, AN ADHERENT ELECTROCONDUCTIVE METAL OXIDE FILM ON THE SURFACE OF SUCH BODY AND SPACED, ELECTRICALLY CONDUCTING TERMINAL MEMBERS IN ELECTRICAL CONTACT WITH THE FILM.
Claim 2
Dependent Claim
37 words
AN ELECTRICAL RESISTOR COMPRISING A GLASS BODY SUBSTANTIALLY FREE FROM ALKALI METAL IONS, AN ADHERENT ELECTROCONDUCTIVE METAL OXIDE FILM ON THE SURFACE OF SUCH BODY AND SPACED, ELECTRICALLY CONDUCTING TERMINAL MEMBERS IN ELECTRICAL CONTACT WITH THE FILM.
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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) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |