Patent US2961340A successfully refreshed from Google Patents.
US2961340A
Expired / Lapsed
US
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Process for coating hydrophilic films
Assignee: EIDP Inc
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Filing: 1956-03-30
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Granted: 1960-11-22
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Meier John Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:02
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/052; C08J2301/00; C08J2301/06; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; Y; Y10; Y10T; Y10T428/00; Y10T428/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A PROCESS FOR COATING SOFTENED REGENERATED CELLULOSE FILM WITH A MOISTURE-RESISTANT COATING, THE IMPROVEMENT WITH COMPRISES PASSING THE FILM THROUGH AN AQUEOUS DISPERSION CONTAINING 5%-60% OF A COPOLYMER OF VINYLIDENE CLORIDE WITH AT LEAST ONE OTHER MONOOLEFINIC MONOMER COPOLYMERIZABLE WITH VINYLIDENE CHLORIDE AND DISSOLVED THEREIN 10%-30% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYHDRIC ALCOHOLS AND POLYGLYCOLS, REMOLVING EXCESS DISPERSION FROM THE FILM: SMOOTHING SAID DISPERSION ON THE SURFACE OF THE FILM AND DRYING THE COATED FILM.
Claim 2
Dependent Claim
80 words
IN A PROCESS FOR COATING SOFTENED REGENERATED CELLULOSE FILM WITH A MOISTURE-RESISTANT COATING, THE IMPROVEMENT WITH COMPRISES PASSING THE FILM THROUGH AN AQUEOUS DISPERSION CONTAINING 5%-60% OF A COPOLYMER OF VINYLIDENE CLORIDE WITH AT LEAST ONE OTHER MONOOLEFINIC MONOMER COPOLYMERIZABLE WITH VINYLIDENE CHLORIDE AND DISSOLVED THEREIN 10%-30% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYHDRIC ALCOHOLS AND POLYGLYCOLS, REMOLVING EXCESS DISPERSION FROM THE FILM: SMOOTHING SAID DISPERSION ON THE SURFACE OF THE FILM AND DRYING THE COATED FILM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |