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US3595735A Expired / Lapsed US ⏱️ 0.0 years remaining

Blown tubular films

Assignee: Millennium Petrochemicals Inc
•
Filing: 1968-05-06
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Granted: 1971-07-27
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Expires: 1988-05-06
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Abstract

Abstract BLOWN LAMINATED TUBULAR FILMS, INVOLVING LAMINATES OF ETHYLENE-VINYL ACETATE COPOLYMER CORES AND LINEAR POLYETHYLENE OUTER LAYERS BONDED THERETO. THE LINEAR POLYETHYLENE LAYERS INCORPORATE NUCLEATING AGENTS. THE RESULTING LAMINATES HAVE DESIRABLE OPTICAL, PHYSICAL AND MECHANICAL CHARACTERISTICS, AND ARE USEFUL IN VARIOUS POLYOLEFIN FILM APPLICATIONS.

Inventors

  • 👤 Frederick S Tyrrell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:35
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B32B27/32; B29C2791/00; B29C2791/004; B29C2791/007; B29C48/001; B29C48/0018; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2031/00; B29K2031/04; B29L; B29L2023/00; B29L2023/001; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0083; C08K5/04; C08K5/09; C08K5/098; C08L; C08L23/00; C08L23/02; C08L23/04; Y; Y10; Y10T; Y10T428/00; Y10T428/25

Claims Analysis

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References Cited (Backward Citations)

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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) 1974-07-26 1975-01-25 1975-07-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-07-26 1979-01-25 1979-07-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-07-26 1983-01-25 1983-07-27 $7700.00 Window Closed / Lapsed

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