US3055852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polytetrafluoroethylene-cellulosic ether dispersion, method of forming coatings therewith, and article coated therewith
Assignee: Acheson Industries Inc
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Filing: 1958-09-08
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Granted: 1962-09-25
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Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 Earl L Youse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:36
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26; C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D127/00; C09D127/02; C09D127/12; C09D127/18; C10; C10M; C10M7/00; C08; C08L; C08L1/00; C08L1/08; C08L1/26; C08L29/00; C08L29/14; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/061; C10M2201/065; C10M2201/066; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2201/10; C10M2201/102; C10M2201/16; C10M2201/18; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/28; C10M2207/30; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/10; C10M2209/101; C10M2209/12; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/20; C10M2215/202; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/104; C10M2219/108; C10N; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/08; C10N2050/10; C10N2070/00; C10N2070/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24372; Y10T428/24405; Y10T428/24802; Y10T428/24893; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A POLYETRAFLUOROETHYLENE DISPERSION COMPRISING POLYTETRAFLUOROETHYLENE PARTICLES HAVING A SIZE IN THE RANGE OF ABOUT 0.1 MICRON TO ABOUT 3 MICRONS, A CELLULOSE ETHER RESIN AND A DISPERSIVE MEDIUM CAPABLE OF DISSOLVING SAID RESIN, ABOUT 5% TO ABOUT 15% BY WEIGHT OF POLYVINYLBUTYRALDEHYDE, BASED ON THE WEIGHT OF THE SAID CELLULOSE ETHER RESIN SOLIDS, SAID DISPERSION CONTAINING LESS THAN ABOUT 40% COMBINED POLYTETRAFLUOROETHYLENE AND RESIN SOLIDS, BY WEIGHT OF SAID DISPERSION, AND SAID POLYTETRAFLUOROETHYLENE PARTICLES CONSTITUTING BETWEEN ABOUT 20% AND ABOUT 80% OF THE COMBINED CELLULOSE ETHER RESIN AND POLYTETRAAFLUOROETHYLENE.
Claim 2
Dependent Claim
89 words
A POLYETRAFLUOROETHYLENE DISPERSION COMPRISING POLYTETRAFLUOROETHYLENE PARTICLES HAVING A SIZE IN THE RANGE OF ABOUT 0.1 MICRON TO ABOUT 3 MICRONS, A CELLULOSE ETHER RESIN AND A DISPERSIVE MEDIUM CAPABLE OF DISSOLVING SAID RESIN, ABOUT 5% TO ABOUT 15% BY WEIGHT OF POLYVINYLBUTYRALDEHYDE, BASED ON THE WEIGHT OF THE SAID CELLULOSE ETHER RESIN SOLIDS, SAID DISPERSION CONTAINING LESS THAN ABOUT 40% COMBINED POLYTETRAFLUOROETHYLENE AND RESIN SOLIDS, BY WEIGHT OF SAID DISPERSION, AND SAID POLYTETRAFLUOROETHYLENE PARTICLES CONSTITUTING BETWEEN ABOUT 20% AND ABOUT 80% OF THE COMBINED CELLULOSE ETHER RESIN AND POLYTETRAAFLUOROETHYLENE.
References Cited (Backward Citations)
US2413498A
Cited
US2719833A
Cited
US2868741A
Cited
US2881142A
Cited
US2878196A
Cited
US2951047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |