Patent US3413254A successfully refreshed from Google Patents.
US3413254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sprayable acrylate and methacrylate polymers soluble in propellent solvent
Assignee: Johnson and Johnson
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Filing: 1964-04-09
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Granted: 1968-11-26
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Expires: 1984-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert J Gander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:43
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/30; A; A61; A61K; A61K9/00; A61K9/70; A61K9/7015; A61L; A61L26/00; A61L26/0009; A61L26/0014; A61L26/0061; A61L26/0076; C08; C08F; C08F8/00; C08F8/34; C09D; C09D133/00; C09D133/04; C09D133/06; Y; Y10; Y10S; Y10S524/00; Y10S524/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A PRESSURIZED SYSTEM FOR SPRAY APPLICATION A SOLUTION OF A FILM-FORMING POLYMER IN PROPELLENT SAID FILMFORMING POLYMER BEING AT LEAST ONE OF THE GROUP CONSISTING OF HOMOPOLYMERS AND COPOLYMERS OF ALKYL ACRYLATES AND HOMOPOLYMERS AND COPOLYMERS OF ALKYL METHACRYLATES WHEREIN THE ALKYL GROUP HAS AT LEAST FOUR CARBON ATOMS AND WHEREIN SAID POLYMER HAS A RELATIVE VISCOSITY OF NOT OVER 1.60 SAID POLYMER BEING PRESENT IN SAID SOLUTION IN A CONCENTRATION OF NOT OVER 6.0% AND SAID PROPELLANT CONTAINING AT LEAST ONE PROPELLANT SOLVENT OF THE GROUP CONSISTING OF TRICHLORFLUOROMETHANE, DICHLORODIFLUOROMETHANE, 1,1,2-TRICHLORO-1,2,2-DIFLUOROETHANE, 1,1-DIFLUORO1-CHLOROETHANE, VINYL CHLORIDE AND DIMETHYL ETHER, THE SOLVENT FOR SAID FILM-FORMING POLYMER IN SAID PRESSURIZED SYSTEM CONSISTING ESSENTIALLY OF SAID PROPELLENT SOLVENT AND SAID PRESSURIZED SYSTEM CONTAINING NO OTHER SOLVENT FOR SAID FILM-FORMING POLYMER IN AMOUNTS SUFFICIENT TO COMPLETELY DISSOLVE SAID FILM-FORMING POLYMER IN THE ABSENCE OF SAID PROPELLENT SOLVENT.
Claim 2
Dependent Claim
143 words
IN A PRESSURIZED SYSTEM FOR SPRAY APPLICATION A SOLUTION OF A FILM-FORMING POLYMER IN PROPELLENT SAID FILMFORMING POLYMER BEING AT LEAST ONE OF THE GROUP CONSISTING OF HOMOPOLYMERS AND COPOLYMERS OF ALKYL ACRYLATES AND HOMOPOLYMERS AND COPOLYMERS OF ALKYL METHACRYLATES WHEREIN THE ALKYL GROUP HAS AT LEAST FOUR CARBON ATOMS AND WHEREIN SAID POLYMER HAS A RELATIVE VISCOSITY OF NOT OVER 1.60 SAID POLYMER BEING PRESENT IN SAID SOLUTION IN A CONCENTRATION OF NOT OVER 6.0% AND SAID PROPELLANT CONTAINING AT LEAST ONE PROPELLANT SOLVENT OF THE GROUP CONSISTING OF TRICHLORFLUOROMETHANE, DICHLORODIFLUOROMETHANE, 1,1,2-TRICHLORO-1,2,2-DIFLUOROETHANE, 1,1-DIFLUORO1-CHLOROETHANE, VINYL CHLORIDE AND DIMETHYL ETHER, THE SOLVENT FOR SAID FILM-FORMING POLYMER IN SAID PRESSURIZED SYSTEM CONSISTING ESSENTIALLY OF SAID PROPELLENT SOLVENT AND SAID PRESSURIZED SYSTEM CONTAINING NO OTHER SOLVENT FOR SAID FILM-FORMING POLYMER IN AMOUNTS SUFFICIENT TO COMPLETELY DISSOLVE SAID FILM-FORMING POLYMER IN THE ABSENCE OF SAID PROPELLENT SOLVENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |