US2495429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating foodstuffs
Assignee: Raytheon Co
•
Filing: 1945-10-08
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Granted: 1950-01-24
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Expires: 1965-10-08
Abstract
No abstract record available.
Inventors
- 👤 Percy L Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/10; A23L5/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN THE METHOD OF TREATING FOODSTUFFS, THOSE STEPS WHICH INCLUDE: GENERATING ELECTROMAGNETIC WAVE ENERGY OF A WAVELENGTH FALLING IN THE MICROWAVE REGION OF THE ELECTROMAGNETIC SPECTRUM; CONCENTRATING AND GUIDING SAID WAVE ENERGY WITHIN A RESTRICTED REGION OF SPACE AND EXPOSING THE FOODSTUFFS TO BE TREATED TO THE ENERGY SO GENERATED FOR A PERIOD OF TIME SUFFICIENT TO COOK THE SAME TO A PREDETERMINED DEGREE.
Claim 2
Dependent Claim
64 words
IN THE METHOD OF TREATING FOODSTUFFS, THOSE STEPS WHICH INCLUDE: GENERATING ELECTROMAGNETIC WAVE ENERGY OF A WAVELENGTH FALLING IN THE MICROWAVE REGION OF THE ELECTROMAGNETIC SPECTRUM; CONCENTRATING AND GUIDING SAID WAVE ENERGY WITHIN A RESTRICTED REGION OF SPACE AND EXPOSING THE FOODSTUFFS TO BE TREATED TO THE ENERGY SO GENERATED FOR A PERIOD OF TIME SUFFICIENT TO COOK THE SAME TO A PREDETERMINED DEGREE.
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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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |