US2883307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance paint capable of forming a heating film
Assignee: Georgia Tech Research Institute
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Filing: 1953-07-30
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Granted: 1959-04-21
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Expires: 1973-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Clyde Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:19
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF MAKING A RESISTANCE ELEMENT FOR HEATING PURPOSES, WHICH INCLUDES MIXING FROM APPROXIMATELY 30% TO APPROXIMATELY 80% BY WEIGHT A SILICATE WATER SOLUTION SELECTED FROM THE GROUP CONSISTING OF SODIUM SILICATE AND POTASSIUM SILICATE, FROM APPROXIMATELY 10% TO APPROXIMATELY 30% BY WEIGHT A FINELY DIVIDED CONDUCTING MATERIAL FROM APPROXIMATELY 5% TO APPROXIMATELY 10% BY WEIGHT COAL, FROM APPROXIMATELY 1% TO APPROXIMATELY 15% BY WEIGHT BENTONITE AND UP TO APPROXMATELY 50% BY WEIGHT WATER TO MAKE A FREE FLOWING RESISTANCE PAINT, COATING AN INSULATION CARRYING ELEMENT WITH A THIN FILM OF SAID RESISTANCE PAINT AND DRYING SAID FILM IN AIR.
Claim 2
Dependent Claim
30 words
A METHOD AS CLAIMED IN CLAIM 8 WHEREIN AN ELECTRICALLY INSULATING FILM IS COATED OVER SAID FILM OF SAID RESISTANCE PAINT AFTER SAID FILM OF SAID RESISTANCE PAINT HAS DRIED.
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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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |