US3649434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulating process and products of wire coated with poly(tetrafluoroethylene)
Assignee: Gore Enterprise Holdings Inc
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Filing: 1969-09-02
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Granted: 1972-03-14
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Expires: 1989-09-02
Abstract
Abstract UNSINTERED POLY(TETRAFLUOROETHYLENE) IN SHEET FORM IS PASSED THROUGH A FUNNEL-LIKE ELEMENT TO CAUSE THE SHEET TO ROLL ALONG ITS LONGITUDINAL AXIS AND TO SURROUND AN ANTICLE, SUCH AS A WIRE, THAT IS BEING SIMULTANEOUSLY PASSED THROUGH THE APERTURE FORMED BY THE ROLLING SHEET MATERIAL, THUS WRAPPING THE ARTICLE WHICH IS THEN SUBJECTED TO PRESSURE TO BOND THE UNSINTERED SHEETS TOGETHER WHERE THEY CONTACT EACH OTHER. THE COATED ARTICLE THAT EMERGES IS THEN HEATED TO SINTER THE POLY(TETRAFLUOROETHYLENE).
Inventors
- 👤 Carl Walter Mortenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:27
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/10; B; B29; B29C; B29C43/00; B29C43/22; B29C43/224; B29C63/00; B29C63/02; B29C63/04; B29C63/06; B29C63/065; H01B13/103; H01B7/00; H01B7/08; B29C43/006; B29C67/00; B29C67/02; B29C67/04; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29L; B29L2031/00; B29L2031/34; B29L2031/3462; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033; Y10T428/00; Y10T428/31504; Y10T428/3154
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |