US3554770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged food product
Assignee: Hunt Wesson Foods Inc
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Filing: 1964-11-17
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Granted: 1971-01-12
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Expires: 1984-11-17
Abstract
Abstract A PACKAGE FOR HEATING PRECOOKED FOOD FORMED FROM A SHEET MATERIAL COMPRISING AN INNER PLASTIC LAYER, AN INTERMEDIATE METAL FOIL LAYER AND AN OUTER ELECTRICALLYINSULATIVE LAYER. THE PACKAGE IS RECTANGULAR SUCH THAT ONE END EXTENDS OUT OF A HEATING UNTI WHEN THE FOOD IS BEING HEATED. THE EDGES OF THE SHEET MATERIAL ARE ELECTRICALLY INSULATED BY FOLDING THE EDGES (WITH THE EXCEPTION OF THE EDGE EXTENDING OUT OF THE HEATING UNIT) SO THAT THE FOIL LAYER IS COMPLETELY ENCLOSED BY THE OUTER ELECTRICALLYINSULATIVE LAYER.
Inventors
- 👤 Marcus Lipsky
- 👤 William J Mahan
- 👤 Dorothy C Mahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:25
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/001; B32; B32B; B32B27/00; B65B25/06; B65B25/065; B65B25/067; B65D; B65D75/00; B65D75/04; B65D75/20; B65D75/26; B65D75/28; B65D75/30; B65D81/00; B65D81/34; B65D81/3492; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3402; B65D2581/3416; B65D2581/3417
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |