US3576650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic plastic film package
Assignee: Delmed Inc
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Filing: 1968-01-18
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Granted: 1971-04-27
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Expires: 1988-01-18
Abstract
Abstract A PLASTIC FILM PACKAGE FABRICATED FROM A BIAXIALLY ORIENTED POLYOLEFIN FILM OBTAINED FROM A RESIN COMPOSITION COMPRISING EITHER A HOMOPOLYMER AND/OR A COPOLYMER OF AT LEAST ABOUT 50% BY WEIGHT OF ETHYLENE IS UTILIZED FOR PACKAGING VIABLE AND PERSIHABLE MATERIALS THEREIN AT CRYOGENIC TEMPERATURES.
Inventors
- 👤 William F Underwood
- 👤 Stanley Lustig
- 👤 Franklin E Schrage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:31
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10S428/00; Y10S428/91
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |