US2765267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation films
Assignee: Sprague Electric Co
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Filing: 1953-11-19
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Granted: 1956-10-02
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Expires: 1973-11-19
Abstract
No abstract record available.
Inventors
- 👤 Stanley O Dorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:25
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/441; B; B29; B29C; B29C63/00; B29C63/0004; B29C63/0013; Y; Y10; Y10T; Y10T156/00; Y10T156/11; Y10T156/1111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PROCESS FOR PREPARING A THIN ELONGATED CONTINUOUS AND SELF-SUPPORTING FILM OF AN INSOLUBLE TEMPERATURE RESISTANT RESIN OF THE CLASS CONSISTING OF POLYTETRAHALOETHYLENES, HALOGEN SUBSTITUTED CROSS-LINKED VINYLS, AND CROSS-LINKED POLYETHYLENE, WHICH PROCESS COMPRISES THE STEPS OF PROVIDING AN ELECTRICALLY CONDUCTIVE BASE HAVING A SURFACE ADHERENTLY COATED WITH A COHERENT LAYER OF SAID RESIN IN THE DESIRED THINNESS, SEPARATING A PORTION OF THE COATING FROM THE BASE TO EXPOSE A PORTION OF THE BASE SURFACE, THEN IMMERSING THE BASE IN AN ELECTROLYTE THAT GENERATES GAS UPON ELECTROLYSIS, PASSING AN ELECTROLYZING CURRENT FROM SAID EXPOSED SURFACE PORTION TO SAID ELECTROLYTE TO GENERATE SUBSTANTIAL QUANTITIES OF GAS ON SAID EXPOSED SURFACE PORTION ADJACENT THE JUNCTURE OF THE SEPARATED COATING PORTION WITH THE UNSEPARATED ADHERENT COATING TO LOOSEN A SECTION OF SAID COATING, AND PULLING THE LOOSENED SECTION TO PULL OFF AS A CONTINUOUS STRIP ALL THE ADHERENT PORTION OF THE COATING FROM THE IMMERSED SECTION OF THE BASE DURING THE ELECTROLYZING.
Claim 2
Dependent Claim
158 words
A PROCESS FOR PREPARING A THIN ELONGATED CONTINUOUS AND SELF-SUPPORTING FILM OF AN INSOLUBLE TEMPERATURE RESISTANT RESIN OF THE CLASS CONSISTING OF POLYTETRAHALOETHYLENES, HALOGEN SUBSTITUTED CROSS-LINKED VINYLS, AND CROSS-LINKED POLYETHYLENE, WHICH PROCESS COMPRISES THE STEPS OF PROVIDING AN ELECTRICALLY CONDUCTIVE BASE HAVING A SURFACE ADHERENTLY COATED WITH A COHERENT LAYER OF SAID RESIN IN THE DESIRED THINNESS, SEPARATING A PORTION OF THE COATING FROM THE BASE TO EXPOSE A PORTION OF THE BASE SURFACE, THEN IMMERSING THE BASE IN AN ELECTROLYTE THAT GENERATES GAS UPON ELECTROLYSIS, PASSING AN ELECTROLYZING CURRENT FROM SAID EXPOSED SURFACE PORTION TO SAID ELECTROLYTE TO GENERATE SUBSTANTIAL QUANTITIES OF GAS ON SAID EXPOSED SURFACE PORTION ADJACENT THE JUNCTURE OF THE SEPARATED COATING PORTION WITH THE UNSEPARATED ADHERENT COATING TO LOOSEN A SECTION OF SAID COATING, AND PULLING THE LOOSENED SECTION TO PULL OFF AS A CONTINUOUS STRIP ALL THE ADHERENT PORTION OF THE COATING FROM THE IMMERSED SECTION OF THE BASE DURING THE ELECTROLYZING.
References Cited (Backward Citations)
US2480845A
Cited
US2528445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |