US3585177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel poly(olefin/vinyl alcohol) packaging materials
Assignee: Monsanto Co
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Filing: 1966-11-30
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Granted: 1971-06-15
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Expires: 1986-11-30
Abstract
Abstract OLEFIN/VINYL ALCOHOL COPOLYMERS ARE PREPARED BY A SPECIAL PROCESS TO GIVE COPOLYMERS THAT HAVE A NARROW OLEFIN DISTRIBUTION AND WHICH ARE SUBSTANTIALLY FREE OF HOMOPOLYMER SEGMENTS. THESE NOVEL COPOLYMERS ARE THEN FORMED INTO PACKAGING MATERIALS WHICH ARE CHARACTERIZED BY HAVING GOOD THERMAL PROCESSING CHARACTERISTICS AND LOW PERMEABILITY TO OXYGEN AND WATER VAPOR.
Inventors
- 👤 Donald M Gardner
- 👤 Joseph G Martins
- 👤 Leo J Monaghan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:30
CPC Classifications
C; C08; C08J; C08J5/00; C08F; C08F10/00; C08F218/00; C08F218/02; C08F218/04; C08F8/00; C08F8/12; C08F2800/00; C08F2800/20; C08J2329/00; C08J2329/02; C08J2329/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |