Patent US3232791A successfully refreshed from Google Patents.
US3232791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerated cellulose film having a moistureproof coating
Assignee: EIDP Inc
•
Filing: 1961-12-22
•
Granted: 1966-02-01
•
Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Whitehouse Alan Brack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:21
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/046; C08J7/052; C08K5/00; C08K5/16; C08K5/20; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08J2301/00; C08J2301/06; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A COATED SHEET COMPRISING A BASE SHEET OF A REGENERATED CELLULOSE FILM HAVING ON THE SURFACE THEREOF A MOISTUREPROOF COATING HAVING IMPROVED SLIP PROPERTIES CONSISTING ESSENTIALLY OF A VINYLIDENE CHLORIDE COPOLYMER CONTAINING 80-97% VINYLIDENE CHLORIDE AND 0.5%-5%, BASED ON THE WEIGHT OF SAID COPOLYMER, OF AN ALIPHATIC MONOCARBOXYLIC ACID AMIDE CONTAINING FROM 12 TO 22 CARBON ATOMS AND HAVING DISPERSED IN SAID COATING 0.2-5%, BASED ON THE WEIGHT OF SAID VINYLIDENE CHLORIDE COPOLYMER, OF MICA PARTICLES HAVING THEIR LARGEST DIMENSION BETWEEN 5 AND 70 MICRONS.
Claim 2
Dependent Claim
85 words
A COATED SHEET COMPRISING A BASE SHEET OF A REGENERATED CELLULOSE FILM HAVING ON THE SURFACE THEREOF A MOISTUREPROOF COATING HAVING IMPROVED SLIP PROPERTIES CONSISTING ESSENTIALLY OF A VINYLIDENE CHLORIDE COPOLYMER CONTAINING 80-97% VINYLIDENE CHLORIDE AND 0.5%-5%, BASED ON THE WEIGHT OF SAID COPOLYMER, OF AN ALIPHATIC MONOCARBOXYLIC ACID AMIDE CONTAINING FROM 12 TO 22 CARBON ATOMS AND HAVING DISPERSED IN SAID COATING 0.2-5%, BASED ON THE WEIGHT OF SAID VINYLIDENE CHLORIDE COPOLYMER, OF MICA PARTICLES HAVING THEIR LARGEST DIMENSION BETWEEN 5 AND 70 MICRONS.
References Cited (Backward Citations)
GB467901A
Cited
US2098538A
Cited
US2098537A
Cited
GB766708A
Cited
US2965591A
Cited
US2953537A
Cited
US2909449A
Cited
US2902391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |