Patent US2829068A successfully refreshed from Google Patents.
US2829068A
Expired / Lapsed
US
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Thermoplastic polymeric films
Assignee: EIDP Inc
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Filing: 1954-11-22
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Granted: 1958-04-01
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Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Stewart Junior Jay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:26
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/048; C08J7/052; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; C08J2433/00; C08J2433/04; C08J2433/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PACKAGING FILM COMPRISING BASE FILM OF THERMOPLASTIC POLYMERIC MATERIAL HAVING AT LEAST ONE SURFACE COATED WITH A SUBCOATING COMPRISING A COPOLYMER OBTAINED FROM 50-80% VINYLIDENE CHLORIDE AND 20-50% ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS AT LEAST TWO CARBON ATOMS, AND A TOP COATING COMPRISING A COPOLYMER OBTAINED FROM 80-97% VINYLIDENE CHLORIDE AND 3-20% OF AT LEAST ONE OTHER POLYMERIZABLE MONO-OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH.
Claim 2
Dependent Claim
65 words
A PACKAGING FILM COMPRISING BASE FILM OF THERMOPLASTIC POLYMERIC MATERIAL HAVING AT LEAST ONE SURFACE COATED WITH A SUBCOATING COMPRISING A COPOLYMER OBTAINED FROM 50-80% VINYLIDENE CHLORIDE AND 20-50% ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS AT LEAST TWO CARBON ATOMS, AND A TOP COATING COMPRISING A COPOLYMER OBTAINED FROM 80-97% VINYLIDENE CHLORIDE AND 3-20% OF AT LEAST ONE OTHER POLYMERIZABLE MONO-OLEFINIC MONOMER COPOLYMERIZABLE THEREWITH.
References Cited (Backward Citations)
CA500178A
Cited
US2627088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |