Patent US2811468A successfully refreshed from Google Patents.
US2811468A
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Impermeable polyethylene film and containers and process of making same
Assignee: Shulton Inc
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Filing: 1956-06-28
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Granted: 1957-10-29
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Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Joffre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:09
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/126; B; B29; B29C; B29C49/00; B29C49/42; B29C49/46; C08F; C08F8/00; C08F8/18; C08F8/20; B29C2049/4602; B29C2049/4611; B29C2049/4617; B29C2049/4623; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2995/00; B29K2995/0037; B29K2995/0065; B29K2995/0067; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
A POLYETHYLENE CONTAINER HAVING ITS WALLS FLUORINATED, TO CONTAIN NOT MORE THAN ABOUT 3.5% BY WEIGHT OF FLUORINE AND ENOUGH FLUORINE SO THAT THE WALLS OF SAID CONTAINER ARE SUBSTANTIALLY IMPERMEABLE TO THE PASSAGE THERETHROUGH OF THE LIGHT NOTES OF PEERFUME COMPOSITIONS.
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |