US2898228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating polyfluoroethylenes
Assignee: EIDP Inc
•
Filing: 1957-02-18
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Granted: 1959-08-04
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Frank M Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:43
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C23; C23C; C23C14/00; C23C14/02; C23C14/06; C23C14/14; C23C14/20; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/206; H01; H01B; H01B1/00; H01G; H01G13/00; H01G13/06; H05K2201/00; H05K2201/01; H05K2201/0137; H05K2201/015; H05K2203/00; H05K2203/11; H05K2203/1163; H05K3/10; H05K3/18; H05K3/181; H05K3/388; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF COATING POLYFLUOROETHYLENE SURFACES, SAID POLYFLUORETHYLENE BEING A MEMBER OF THE CLASS CONSISTING OF POLYMERS OF TETRAFLUOROETHYLENE AND CHLOROTRIFLUOROETHYLENE AND COPOLYMERS OF TETRAFLUOROETHYLENE AND HEXAFLUOROPROPYLENE, WHICH COMPRISES CONTACTING THE POLYFLUOROPROPYLENE SURFACE TO BE COATED WITH A SOLUTION OF AN ALKALI METAL IN A NON-METALLIC INERT SOLVENT CAPABLE OF WETTING THE POLYFLUOROETHYLENE, RECOVERING A NONMETALLIC TREATED SURFACE, AND THEREAFTER DEPOSITING ON SAID TREATED SURFACE A METAL SELECTED FROM THE CLASS CONSISTING OF ALUMINUM, COPPER, SILVER, TIN, CHROMIUM AND GERMANIUM, SAID METAL BEING DEPOSITED IN COLLOIDAL FORM.
Claim 2
Independent Claim
87 words
A METHOD OF COATING POLYFLUOROETHYLENE SURFACES, SAID POLYFLUORETHYLENE BEING A MEMBER OF THE CLASS CONSISTING OF POLYMERS OF TETRAFLUOROETHYLENE AND CHLOROTRIFLUOROETHYLENE AND COPOLYMERS OF TETRAFLUOROETHYLENE AND HEXAFLUOROPROPYLENE, WHICH COMPRISES CONTACTING THE POLYFLUOROPROPYLENE SURFACE TO BE COATED WITH A SOLUTION OF AN ALKALI METAL IN A NON-METALLIC INERT SOLVENT CAPABLE OF WETTING THE POLYFLUOROETHYLENE, RECOVERING A NONMETALLIC TREATED SURFACE, AND THEREAFTER DEPOSITING ON SAID TREATED SURFACE A METAL SELECTED FROM THE CLASS CONSISTING OF ALUMINUM, COPPER, SILVER, TIN, CHROMIUM AND GERMANIUM, SAID METAL BEING DEPOSITED IN COLLOIDAL FORM.
References Cited (Backward Citations)
US2689805A
Cited
US2789063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |