US3211880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven
Assignee: Westinghouse Electric Corp
•
Filing: 1963-05-29
•
Granted: 1965-10-12
•
Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Stewart C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:08
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/642; H05B6/6402; H05B6/76; H05B6/766
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
APPARATUS FOR HEATING FOOD MATERIALS WITH MICROWAVE ENERGY, COMPRISING A HOUSING DEFINING A MICROWAVE COOKING OVEN ADAPTED TO CONTAIN THE ENERGY, A MICROWAVE GENERATOR, A WAVEGUIDE INTERCONNECTING THE MICROWAVE GENERATOR AND THE OVEN AND THEREBY DEFINING A PATH FOR THE ENERGY, A CONDUIT CROSSING A PORTION OF THE WAVEGUIDE INTERIOR ADJACENT THE OVEN INTERIOR, A DIELECTRIC LIQUID IN THE CONDUIT, A PUMP FOR CIRCULATING THE LIQUID THROUGH THE CONDUIT, AND MEANS FOR CIRCULATING THE LIQUID IN THE FORM OF SEPARATED SLUGS TO VARY THE MICROWAVE PATTERN WITHIN THE OVEN.
Claim 2
Dependent Claim
89 words
APPARATUS FOR HEATING FOOD MATERIALS WITH MICROWAVE ENERGY, COMPRISING A HOUSING DEFINING A MICROWAVE COOKING OVEN ADAPTED TO CONTAIN THE ENERGY, A MICROWAVE GENERATOR, A WAVEGUIDE INTERCONNECTING THE MICROWAVE GENERATOR AND THE OVEN AND THEREBY DEFINING A PATH FOR THE ENERGY, A CONDUIT CROSSING A PORTION OF THE WAVEGUIDE INTERIOR ADJACENT THE OVEN INTERIOR, A DIELECTRIC LIQUID IN THE CONDUIT, A PUMP FOR CIRCULATING THE LIQUID THROUGH THE CONDUIT, AND MEANS FOR CIRCULATING THE LIQUID IN THE FORM OF SEPARATED SLUGS TO VARY THE MICROWAVE PATTERN WITHIN THE OVEN.
References Cited (Backward Citations)
US2404568A
Cited
US2400777A
Cited
US2427094A
Cited
GB616996A
Cited
US2585970A
Cited
US2790054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |