US3073794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayable, anhydrous solution of 1-vinyl-2-pyrrolidone polymer in chlorofluoro hydrocarbon propellant
Assignee: GAF Chemicals Corp
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Filing: 1959-05-22
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Granted: 1963-01-15
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Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 George G Stoner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
A; A61; A61Q; A61Q19/00; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/046; A61K8/18; A61K8/72; A61K8/81; A61K8/817; A61K8/8176; A61K9/00; A61K9/10; A61K9/12; A61K2800/00; A61K2800/20; A61K2800/30; A61K2800/31; A61Q5/00; A61Q5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A NON-FLAMMABLE, SPRAYABLE FILM-FORMING COMPOSITION CONSISTING ESSENTIALLY OF AN ANHYDROUS SOLUTION OF AN ANHYDROUS POLYMER OF 1-VINYL-2-PYRROLIDONE AND, BOTH AS SOLVENT AND PROPELLANT, AT LEAST ONE LIQUID CHLOROFLURO ALKANE HYDROCARBON HAVING 1 TO 2 CARBON ATOMS AND 1 TO 2 UNREPLACED HYDROGENS.
Claim 2
Dependent Claim
42 words
A NON-FLAMMABLE, SPRAYABLE FILM-FORMING COMPOSITION CONSISTING ESSENTIALLY OF AN ANHYDROUS SOLUTION OF AN ANHYDROUS POLYMER OF 1-VINYL-2-PYRROLIDONE AND, BOTH AS SOLVENT AND PROPELLANT, AT LEAST ONE LIQUID CHLOROFLURO ALKANE HYDROCARBON HAVING 1 TO 2 CARBON ATOMS AND 1 TO 2 UNREPLACED HYDROGENS.
References Cited (Backward Citations)
US2667473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |