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Patent US2906658A successfully refreshed from Google Patents.
US2906658A
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Method for the preparation of cementable fluorocarbon polymer surfaces
Assignee: EIDP Inc
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Filing: 1958-02-05
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Granted: 1959-09-29
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Expires: 1978-02-05
Abstract
No abstract record available.
Inventors
- 👤 Doban Robert Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/125; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D127/18; C08J2327/00; C08J2327/02; C08J2327/12; C08J2427/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
THE PROCESS OF BONDING POLYTETRAFLUOROETHYLENE TO ANOTHER SURFACE WHICH COMPRISES COATING A SURFACE OF POLYTETRAFLUOROETHYLENE MAINTAINED AT A TEMPERATURE OF 200 TO 300* C. WITH AN AQUEOUS CODISPERSION OF COLLOIDAL POLYTETRAFLUOROETHYLENE AND COLLOIDAL SILICA IN A RATIO OF 10:1, THEREAFTER HEATING THE SAID COATED SURFACE TO A TEMPERATURE OF 500 TO 550* C. FOR A PERIOD OF 0.1 TO 5 MINUTED AND THEREAFTER BONDING SAID SURFACE TO ANOTHER SURFACE WITH AN ADHENSIVE.
References Cited (Backward Citations)
US2592147A
Cited
US2764506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |