US2501400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of food preparation
Assignee: Raytheon Co
•
Filing: 1949-12-27
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Granted: 1950-03-21
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Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Laurence K Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
IN A METHOD OF PREPARING FOOD THE STEPS OF PRECOOKING THE RAW FOODSTUFF, FREEZING THE PRECOOKED FOOD, AND SUBJECTING THE FROZEN PRECOOKED FOOD TO MICROWAVE ENERGY TO HEAT IT TO EATING TEMPERATURE.
Claim 2
Dependent Claim
32 words
IN A METHOD OF PREPARING FOOD THE STEPS OF PRECOOKING THE RAW FOODSTUFF, FREEZING THE PRECOOKED FOOD, AND SUBJECTING THE FROZEN PRECOOKED FOOD TO MICROWAVE ENERGY TO HEAT IT TO EATING TEMPERATURE.
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) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |