US2710266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene coating compositions, method of application to substrates, coated substrates, and films
Assignee: EIDP Inc
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Filing: 1953-12-21
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Granted: 1955-06-07
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Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Hochberg Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C09D127/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31678; Y10T442/00; Y10T442/20; Y10T442/2475
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A SUBSTRATE HAVING A SURFACE COATING COMPRISING POLYETRAFLUOROETHYLENE AND AT LEAST ONE WATER-SOLUBLE ALKALI METAL SILICATE FROM THE GROUP CONSISTING OF SODIUM SILICATE AND POTASSIUM SILICATE, SAID ALKALI METAL SILICATE BEING PRESENT IN AN AMOUNT OF ABOUT 6.0% TO 50.0% OF THE COMBINED WEIGHT OF POLYTETRAFLUOROETHYLENE AND SAID ALKALI METAL SILICATE, THE MOLAR RATIO OF ALKALI METAL OXIDE TO SILICON DIOXIDE IN THE ALKALI METAL SILICATE BEING AT LEAST 1:1.
References Cited (Backward Citations)
US2592147A
Cited
US2520173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |