US2808342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for, and method of applying coatings of polychlorotrifluoroethylene
Assignee: Individual
•
Filing: 1957-01-11
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Granted: 1957-10-01
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Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Mortimer H Nickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:22
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF PROVIDING ARTICLES WITH A CONTINUOUS CRACK-FREE COATING OF POLYCHLOROTRIFLUOROETHYLENE WHICH COMPRISES DISPERSING FINELY DIVIDED POLYCHLOROTRIFLUOROETHYLENE IN A PASTE FORMING MEDIUM HAVING A BOILING RANGE WITHIN A RANGE INCLUDING THE FUSION TEMPERATURE OF THE POLYMER, BOTH CHEMICALLY STABLE AND AT LEAST PARTIALLY SOLUBLE IN THE POLYMER AT SAID TEMPERATURE, APPLYING SAID PASTE DISPERSISON OVER THE SURFACE OF THE ARTICLE TO BE COATED, HEATING THE COATED SURFACE TO THE FUSION TEMPERATURE OF THE POLYMER TO SUBSTANTIALLY SIMULTANEOUSLY EVAPORATE THE DISPERSING MEDIUM COMPLETELY AND FUSE THE POLYMER, AND COOLING THE ARTICLE.
Claim 2
Independent Claim
91 words
THE METHOD OF PROVIDING ARTICLES WITH A CONTINUOUS CRACK-FREE COATING OF POLYCHLOROTRIFLUOROETHYLENE WHICH COMPRISES DISPERSING FINELY DIVIDED POLYCHLOROTRIFLUOROETHYLENE IN A PASTE FORMING MEDIUM HAVING A BOILING RANGE WITHIN A RANGE INCLUDING THE FUSION TEMPERATURE OF THE POLYMER, BOTH CHEMICALLY STABLE AND AT LEAST PARTIALLY SOLUBLE IN THE POLYMER AT SAID TEMPERATURE, APPLYING SAID PASTE DISPERSISON OVER THE SURFACE OF THE ARTICLE TO BE COATED, HEATING THE COATED SURFACE TO THE FUSION TEMPERATURE OF THE POLYMER TO SUBSTANTIALLY SIMULTANEOUSLY EVAPORATE THE DISPERSING MEDIUM COMPLETELY AND FUSE THE POLYMER, AND COOLING THE ARTICLE.
References Cited (Backward Citations)
US2510078A
Cited
US2542069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |