US3279936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating surfaces with perfluorocarbon polymers
Assignee: Forestek Plating and Manufacturing Co
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Filing: 1965-07-22
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Granted: 1966-10-18
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Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Forestek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:04
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; B; B05; B05D; B05D5/00; B05D5/08; B05D5/083; B05D5/086; B22; B22F; B22F3/00; B22F3/10; B22F3/11; B22F3/24; B22F3/26; B29; B29C; B29C70/00; B29C70/58; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; B05D2202/00; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S425/00; Y10S425/055; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24917; Y10T428/25; Y10T428/254; Y10T428/26; Y10T428/268; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A PROCESS FOR RENEWING A METAL SURFACE HAVING A MULTIPLICITY OF MINUTE FISSURES THEREIN WHICH CONTAIN PERFLUOROCARBON POLYMER PARTICLES IN SOME OF SAID FISSURES, COMPRISING THE STEPS OF: (A) COOLING A MULTIPLICITY OF FINELY-DIVIDED PERFLUOROCARBON PARTICLES DOWN TO AT LEAST ABOUT -100*F.; (B) DISPOSING SAID PARTICLES ON THE SURFACE TO BE RENEWED WHILE SAID SURFACE IS AT ABOUT ITS TEMPERATURE OF USAGE AND NOT MORE THAN 650*F. AND; (C) BRUSHING AND OTHERWISE COMPACTING SAID PARTICLES INTO THE FISSURES IN SAID SURFACE.
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |