US2562004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible mica insulation
Assignee: Westinghouse Electric Corp
•
Filing: 1950-06-20
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Granted: 1951-07-24
•
Expires: 1970-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Watson
- 👤 Swiss Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:40
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; C; C04; C04B; C04B26/00; C04B26/02; C04B26/04; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/26; Y10T428/261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
FLEXIBLE MICA INSULATION COMPRISING A LAYER OF MICA FLAKES AND FROM 3% BY 15%, BASED ON THE WEIGHT OF THE MICA FLAKES, OF A FLEXIBLE, TACKY STABLE BINDER APPLIED TO THE MICA FLAKES TO UNITE THEM INTO AN ADHERENT LAYER, THE FLEXIBLE BINDER COMPRISING (A) FROM 95% TO 50% BY WEIGHT OF A LIQUID POLYMER OF AT LEAST ONE ARYL COMPOUND HAVING ETHYLENIC UNSATURATION, THE LIQUID POLYMER BEING OF A VISCOSITY OF FROM 100 TO 10,000 POISES, AND (B) FROM 5% TO 50% BY WEIGHT OF A COPOLYMER OF FROM 50 TO 90 PARTS BY WEIGHT OF A VINYL ARYL COMPOUND AND FROM 50 TO 10 PARTS BY WEIGHT OF A 4 TO 6 CARBON ATOM OLEFINIC HYDROCARBON COMPOUND SELECTED FROM THE CLASS CONSISTING OF BUTADIENE, ISOBUTYLENE AND ISOPRENE, THE COPOLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF BETWEEN 2,000 AND 30,000.
Claim 2
Dependent Claim
141 words
FLEXIBLE MICA INSULATION COMPRISING A LAYER OF MICA FLAKES AND FROM 3% BY 15%, BASED ON THE WEIGHT OF THE MICA FLAKES, OF A FLEXIBLE, TACKY STABLE BINDER APPLIED TO THE MICA FLAKES TO UNITE THEM INTO AN ADHERENT LAYER, THE FLEXIBLE BINDER COMPRISING (A) FROM 95% TO 50% BY WEIGHT OF A LIQUID POLYMER OF AT LEAST ONE ARYL COMPOUND HAVING ETHYLENIC UNSATURATION, THE LIQUID POLYMER BEING OF A VISCOSITY OF FROM 100 TO 10,000 POISES, AND (B) FROM 5% TO 50% BY WEIGHT OF A COPOLYMER OF FROM 50 TO 90 PARTS BY WEIGHT OF A VINYL ARYL COMPOUND AND FROM 50 TO 10 PARTS BY WEIGHT OF A 4 TO 6 CARBON ATOM OLEFINIC HYDROCARBON COMPOUND SELECTED FROM THE CLASS CONSISTING OF BUTADIENE, ISOBUTYLENE AND ISOPRENE, THE COPOLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF BETWEEN 2,000 AND 30,000.
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |