Patent US3715860A successfully refreshed from Google Patents.
US3715860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preserving perishable products
Assignee: Individual
•
Filing: 1971-07-23
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Granted: 1973-02-13
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Expires: 1991-07-23
Abstract
Abstract THE METHOD OF PACKAGING PERISHABLE PRODUCTS IN A CONTAINER AND INSURING PRESERVATION OF THE PRODUCTS WHILE IN THE CONTAINER, WHICH METHOD CONSISTS IN PERMANENTLY SEALING THE OPENING OF THE CONTAINER AFTER THE PRODUCT IS PACKAGED THEREAFTER FORCING AN INERT FLUID TO EXPEL THE AIR FROM THE CONTAINER THROUGH A PORT ENTRY AND EXHAUST, THEM SEALING THE PORT ENTRY AND EXHAUST WHILE IN THE PROCCESS OF PURGING, THUS TRAPPING THE INERT FLUID IN THE CONTAINER. D R A W I N G
Inventors
- 👤 J Esty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:58
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/001
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |