US2909449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene chloride copolymer coating compositions
Assignee: EIDP Inc
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Filing: 1956-02-03
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Granted: 1959-10-20
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Expires: 1976-02-03
Abstract
No abstract record available.
Inventors
- 👤 Banigan Thomas Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:30
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/052; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
A PROCESS FOR IMPROVING THE HEAT-SEALABILITY, MOISTURE RESISTANCE, SLIP PROPERTY, AND BLOCKING PROPERTY OF A SMOOTH, NON-FIBROUS REGENERATED CELLULOSE SHEET WHICH COMPRISES COATING SAID SHEET WITH AN AQUEOUS DISPERSION CONTAINING 95-99.5% OF ONE GROUP OF PARTICLES RANGING IN SIZE FROM 0.05-0.5 MICRON AND 0.5-5.0% OF A SECOND GROUP OF PARTICLES RANGING IN SIZE FROM 2-65 MICRONS, SAID GROUPS OF PARTICLES EACH COMPOSED OF A COPOLYMER OF AT LEAST 75% VINYLIDENE CHLORIDE AND UP TO 25% OF AT LEAST ONE OTHER ETHYLENICALLY UNSATURATED COMPOUND COPOLYMERIZABLE THEREWITH; AND DRYING SAID COATED SHEET.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |