US3712848A
Expired / Lapsed
US
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Deoxygenated package
Assignee: Primerica Inc
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Filing: 1969-09-04
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Granted: 1973-01-23
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Expires: 1989-09-04
Abstract
Abstract A LAMINAR SHEET MATERIAL INCLUDING A GAS AND WATER IMPERMEABLE LAYER, A GAS PERMEABLE AND WATER IMPERMEABLE LAYER AND A BONDING MATERIAL THEREBETWEEN CONTAINING A CATALYST CAPABLE OF INITIATING REACTION BETWEEN HYDROGEN AND OXYGEN TO FORM WATER. IN A SEALED POUCH FORMED OF THE SHEET, OXYGEN IS REMOVED BY FORMATION OF WATER WHICH IS TRAPPED BETWEEN THE TWO LAYERS AND THUS OUT OF CONTACT WITH THE PACKAGED PRODUCT.
Inventors
- 👤 W Casey
- 👤 F Grundman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B15/00; B32B15/04; B32B15/08; B32B27/30; B32B27/304; B32B27/32; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/7244; B32B2307/7246; B32B2307/726; B32B2307/7265; B32B2439/00; B32B2439/70; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12493; Y10T428/12736; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31707; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31928
Claims Analysis
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |