US2941905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled organopolysiloxane coating for electrical members
Assignee: Westinghouse Electric Corp
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Filing: 1957-04-05
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Granted: 1960-06-21
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Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles F Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:27
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; H01B3/002; H01B3/006; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/257; Y10T428/259
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN INSULATED ELECTRICAL MEMBER COMPRISING, IN COMBINATION, AN ELECTRICAL CONDUCTOR AND A LAYER OF SOLID INSULTION APPLIED TO SAID ELECTRICAL CONDUCTOR, THE SOLID INSULATION COMPRISING FROM 70% TO 90% BY WEIGHT OF A FINELY DIVIDED INORGANIC FILLER AND FROM 30% TO 10% BY WEIGHT OF A CURED ORGANOPOLYSILOXANE RESIN, THE FILLER COMPRISING AS LEAST ONE INERT, NON-FRIABLE INORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILICA, SILICATES, ALUMINA, AND HYDRATED ALUMINA AND BEING OF SIZE SUCH THAT THE PARTICLES WILL PASS THROUGH A SIEVE HAVING 8 TO 10 MESHES PER LINERAL INCH AND SUBSTANTIALLY ALL WILL BE RETAINED ON A SIEVE HAVING 30 MESHES PER LINERAL INCH, AND SAID ORGANOPOLYSILOXANE RESIN COMPRISING A MIXTURE OF (A) AT LEAST 10% NO MORE THAN 50% BY WEIGHT OF A SILOXANE HAVING THE FORMULA
Claim 2
Dependent Claim
131 words
AN INSULATED ELECTRICAL MEMBER COMPRISING, IN COMBINATION, AN ELECTRICAL CONDUCTOR AND A LAYER OF SOLID INSULTION APPLIED TO SAID ELECTRICAL CONDUCTOR, THE SOLID INSULATION COMPRISING FROM 70% TO 90% BY WEIGHT OF A FINELY DIVIDED INORGANIC FILLER AND FROM 30% TO 10% BY WEIGHT OF A CURED ORGANOPOLYSILOXANE RESIN, THE FILLER COMPRISING AS LEAST ONE INERT, NON-FRIABLE INORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILICA, SILICATES, ALUMINA, AND HYDRATED ALUMINA AND BEING OF SIZE SUCH THAT THE PARTICLES WILL PASS THROUGH A SIEVE HAVING 8 TO 10 MESHES PER LINERAL INCH AND SUBSTANTIALLY ALL WILL BE RETAINED ON A SIEVE HAVING 30 MESHES PER LINERAL INCH, AND SAID ORGANOPOLYSILOXANE RESIN COMPRISING A MIXTURE OF (A) AT LEAST 10% NO MORE THAN 50% BY WEIGHT OF A SILOXANE HAVING THE FORMULA
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |