US3600267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging film
Assignee: Dow Chemical Co
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Filing: 1969-04-14
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Granted: 1971-08-17
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Expires: 1989-04-14
Abstract
Abstract A PACKAGING FILM HAVING IMPROVED MACHINEABILITY BY VIRTUE OF A LOWER HEAT SEAL TEMPERATURE, WIDER SEALING RANGE AND GOOD SEAL STRENGTH WHEREIN THE HEAT SEAL LAYER COMPRISES POLYETHYLENE HOMOPOLYMER AND AN ETHYLENEVINYL ACETATE COPOLYMER.
Inventors
- 👤 Robert Mcfedries Jr
- 👤 Don W Seidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:39
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J7/052; C08J2323/00; C08J2323/02; C08J2323/10; C08J2323/12; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24959; Y10T428/24967; Y10T428/24975; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |