US2940874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of spraying by reducing the viscosity of a copolymer solution
Assignee: Uniroyal Inc
•
Filing: 1958-06-19
•
Granted: 1960-06-14
•
Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 21:08
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10S; Y10S264/00; Y10S264/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD WHICH COMPRISES EFFECTING A MATERIAL REDUCTION IN THE VISCOSITY OF A SOLUTION OF A COPOLYMER OF APPROXIMATELY 72 TO 76 MOLE PERCENT TRIFLUOROCHLOROETHYLENE AND CORRESPONDINGLY 28 TO 24 MOLE PER CENT VINYLIDENE FLUORIDE IN A VOLATILE ORGANIC SOLVENT WHILE EFFECTING MUCH LESS THAN A CORRESPONDING REDUCTION IN SOLIDS CONTENT, SAID SOLUTION CONTAINING FROM 15 TO 25% BY WEIGHT OF SAID COPOLYMER, BY UNIFORMLY ADMIXING THE SOLUTION WITH A MINOR PROPORTION OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND ALKANOLS HAVING FROM ONE TO FIVE CARBON ATOMS PER MOLECULE AND MIXTURES OF THE FOREGOING
Claim 2
Independent Claim
98 words
THE METHOD WHICH COMPRISES EFFECTING A MATERIAL REDUCTION IN THE VISCOSITY OF A SOLUTION OF A COPOLYMER OF APPROXIMATELY 72 TO 76 MOLE PERCENT TRIFLUOROCHLOROETHYLENE AND CORRESPONDINGLY 28 TO 24 MOLE PER CENT VINYLIDENE FLUORIDE IN A VOLATILE ORGANIC SOLVENT WHILE EFFECTING MUCH LESS THAN A CORRESPONDING REDUCTION IN SOLIDS CONTENT, SAID SOLUTION CONTAINING FROM 15 TO 25% BY WEIGHT OF SAID COPOLYMER, BY UNIFORMLY ADMIXING THE SOLUTION WITH A MINOR PROPORTION OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND ALKANOLS HAVING FROM ONE TO FIVE CARBON ATOMS PER MOLECULE AND MIXTURES OF THE FOREGOING
References Cited (Backward Citations)
US2686738A
Cited
US2775569A
Cited
US2686767A
Cited
US2559752A
Cited
US2766215A
Cited
US2770606A
Cited
US2770605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |