US3304406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared oven for heating food in packages
Assignee: SQUARE Manufacturing CO
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Filing: 1963-08-14
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Granted: 1967-02-14
•
Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Alan M King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:09
CPC Classifications
F; F24; F24C; F24C7/00; H; H05; H05B; H05B3/00; H05B3/0033; H05B3/0071; H05B3/0076
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
IN COMBINATION, A HEATING STATION FOR HEATING FROZEN FOOD, COMPRISING: A RELATIVELY SHALLOW FROZEN FOOD PACKAGE HAVING SUBSTANTIALLY PARALLEL TOP AND BOTTOM PANELS HIGHLY TRANSMISSIVE OF INFRARED RAYS; A HEATING STATION INCLUDING INFRARED HEATER MEANS AND GENERALLY PARALLEL INFRARED TRANSMISSIVE PRESSURE MEMBERS, SAID PRESSURE MEMBERS CONSTRUCTED AND ARRANGED TO MAINTAIN THE TOP AND BOTTOM PACKAGE PANELS IN HEAT TRANSFER CONTACT WITH THE FOOD IN THE PACKAGE WHEN THE PACKAGE IS PLACED BETWEEN THE PRESSURE MEMBERS; AND MEANS FOR FORCIBLY CIRCULATING COOLING AIR AROUND THE PACKAGE AND PRESSURE MEMBERS TO MAINTAIN THE MEMBERS AND PACKAGE BELOW PACKAGE CHARRING TEMPERATURES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |