US3707590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oriented saran coextrudate
Assignee: Dow Chemical Co
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Filing: 1970-07-27
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Granted: 1972-12-26
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Expires: 1990-07-27
Abstract
Abstract AN ORIENTED TWO-LAYERED LAMINATE OF VINYLIDENE CHLORIDE-VINYL CHLORIDE COPOLYMER AS ONE LAYER AND AN ETHYLENE-UNSATURATED ESTER TYPE COPOLYMER AS THE OTHER LAYER. TO THIS LAMINATE MAY BE ADHERED POLYMER, ALSO CAPABLE OF BEING ORIENTED, PLASTIC SHEET, PAPER SHEET OR BOARD, METAL OR METAL FOIL. PRODUCTS SUCH AS POUCHES, CHUBS, FORMED TROUGHS AND THE LIKE CAN BE MADE THEREFROM BECAUSE THE VINYLIDENE CHLORIDE-VINYL CHLORIDE COPOLYMER RETAINS ITS ORIENTATION. D R A W I N G
Inventors
- 👤 Glenn C Wiggins
- 👤 Marvin J Kreh
- 👤 Robert S Davis
- 👤 Fred Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/336; B29C48/03; B29C48/09; B29C48/10; B29C48/14; B29C48/147; B29C48/1472; B29C48/16; B29C48/18; B29C48/21; B29C2791/00; B29C2791/004; B29C2791/007; Y; Y10; Y10S; Y10S383/00; Y10S383/908
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |