US3150207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluorocarbon and related products and processes therefor
Assignee: W.L. Gore and Associates Inc
•
Filing: 1960-01-22
•
Granted: 1964-09-22
•
Expires: 1980-01-22
Abstract
No abstract record available.
Inventors
- 👤 Wilbert L Gore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:13
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/30; C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; H01B13/06; H01B13/065; H01B3/00; H01B3/002; H01B3/18; H01B3/30; H01B3/44; H01B3/443; H01B3/445; H01B3/46; H01B3/48; H01B3/50; H01B7/00; H01B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR IMPROVING THE CORONA RESISTANCE OF POLY(TETRAFLUOROETHYLENE) WHICH COMPRISES DISPERSING THROUGHOUT UNSINTERED POLY(TETRAFGLUOROETHYLENE) A DIELECTRIC MATERIAL COMPRISING A POLYSILOXANE, SAID MATERIAL BEING PRESENT IN THE RESULTANT MIXTURE IN AMOUNTS OF ABOUT 3% TO ABOUT 15% BASED ON THE TOTAL WEIGHT OF THE MIXTURE; SHAPING THE RESULTANT MIXTURE; AND SINTERING THE SAID POLYMER IN SHAPED FORM TO PRODUCE SINTERED POLY(TETRAFLUOROETHYLENE) CONTAINING DISPERSED THEREIN ABOUT 3% TO ABOUT 15% OF SAID DIELECTRIC MATERIAL IN THE FORM OF SUBSTANTIALLY SPHERICAL DROPLETS HAVING DIAMETERS OF ABOUT 1 MICRON TO ABOUT 10 MICRONS.
Claim 2
Dependent Claim
90 words
A PROCESS FOR IMPROVING THE CORONA RESISTANCE OF POLY(TETRAFLUOROETHYLENE) WHICH COMPRISES DISPERSING THROUGHOUT UNSINTERED POLY(TETRAFGLUOROETHYLENE) A DIELECTRIC MATERIAL COMPRISING A POLYSILOXANE, SAID MATERIAL BEING PRESENT IN THE RESULTANT MIXTURE IN AMOUNTS OF ABOUT 3% TO ABOUT 15% BASED ON THE TOTAL WEIGHT OF THE MIXTURE; SHAPING THE RESULTANT MIXTURE; AND SINTERING THE SAID POLYMER IN SHAPED FORM TO PRODUCE SINTERED POLY(TETRAFLUOROETHYLENE) CONTAINING DISPERSED THEREIN ABOUT 3% TO ABOUT 15% OF SAID DIELECTRIC MATERIAL IN THE FORM OF SUBSTANTIALLY SPHERICAL DROPLETS HAVING DIAMETERS OF ABOUT 1 MICRON TO ABOUT 10 MICRONS.
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |