Patent US3716370A successfully refreshed from Google Patents.
US3716370A
Expired / Lapsed
US
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A method of heating a package of food
Assignee: Robolex Inc
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Filing: 1971-02-24
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Granted: 1973-02-13
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Expires: 1991-02-24
Abstract
Abstract The method provides for heating a food package by boiling wherein between the lid and the tray a liquid-tight mechanical connection is provided, plus a gas-tight meltable seal. In heating under water the seal melts and allows the escape of steam from the interior while the mechanical connection maintains the interior free of indrawn water.
Inventors
- 👤 R Bemiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:40
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/34; D21B1/345; D21B1/347; B; B65; B65B; B65B29/00; B65B29/08; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2004; B65D77/2012; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205; B65D2577/2075; B65D2577/2091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA496737A
Cited
US2633284A
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US2844475A
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US3027261A
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US2986319A
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US3052554A
Cited
US3468471A
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US3567468A
Cited
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 |