US3881027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of microwave baking
Assignee: Individual
•
Filing: 1973-01-22
•
Granted: 1975-04-29
•
Expires: 1993-01-22
Abstract
Abstract Methods of using, in a microwave oven, a baking chamber, heated by microwave absorptive material, which includes monitoring the temperature of said baking chamber, barbecuing meat within said baking chamber and, after use, the self-cleaning of said baking chamber.
Inventors
- 👤 Melvin L Levinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:04
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494; A; A23; A23L; A23L5/00; A23L5/10; A23L5/15
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A METHOD OF BAKING A FOODSTUFF IN A MICROWAVE OVEN WHICH INCLUDES THE STEPS OF: LOCATING WITHIN SAID MICROWAVE OVEN A BAKING CHAMBER DEFINED BY A FIRST MICROWAVE-PERMEABLE, HEAT-INSULATING MATERIAL AND HEATED BY A SECOND MICROWAVE-ABSORPTIVE MATERIAL, EXPOSING TO MICROWAVE ENERGY SAID BAKING CHAMBER FOR A PREDETERMINED TIME WHILE SAID MICROWAVE-ABSORPTIVE MATERIAL ABSORBS AND CONVERTS SAID MICROWAVE ENERGY TO HEAT ENERGY WHICH HEAT ENERGY HEATS SAID BAKING CHAMBER, AND SUBSEQUENTLY PLACING SAID FOODSTUFF INTO SAID HEATED BAKING CHAMBER FOR A PREDETERMINED TIME TO BAKE SAID FOODSTUFF.
Claim 2
Independent Claim
86 words
A METHOD OF BAKING A FOODSTUFF IN A MICROWAVE OVEN WHICH INCLUDES THE STEPS OF: LOCATING WITHIN SAID MICROWAVE OVEN A BAKING CHAMBER DEFINED BY A FIRST MICROWAVE-PERMEABLE, HEAT-INSULATING MATERIAL AND HEATED BY A SECOND MICROWAVE-ABSORPTIVE MATERIAL, EXPOSING TO MICROWAVE ENERGY SAID BAKING CHAMBER FOR A PREDETERMINED TIME WHILE SAID MICROWAVE-ABSORPTIVE MATERIAL ABSORBS AND CONVERTS SAID MICROWAVE ENERGY TO HEAT ENERGY WHICH HEAT ENERGY HEATS SAID BAKING CHAMBER, AND SUBSEQUENTLY PLACING SAID FOODSTUFF INTO SAID HEATED BAKING CHAMBER FOR A PREDETERMINED TIME TO BAKE SAID FOODSTUFF.
Claim 3
Dependent Claim
28 words
In a method of baking a foodstuff, according to claim 1, the added step of: monitoring the temperature of said baking chamber during said exposure to microwave energy.
Claim 4
Dependent Claim
31 words
In a method of baking a foodstuff, according to claim 1, the added step of: heating a cooking container within said baking chamber before locating said foodstuff within said baking chamber.
Claim 5
Dependent Claim
54 words
In a method of baking a foodstuff, according to claim 1, the added step of: removing said foodstuff from said baking chamber, and additionally exposing said baking chamber to microwave energy until said baking chamber heats to a temperature sufficient to incinerate any waste products and splatter left from said baking of said foodstuff.
Claim 6
Dependent Claim
93 words
In a method of baking a foodstuff, according to claim 1, the added step of: additionally exposing said baking chamber with said foodstuff to be baked therein for an additional predetermined time to microwave energy to heat the interior of said foodstuff by direct exposure to said microwave energy and to heat the surface of said foodstuff by the dual heating action of both heat energy newly converted from said additional exposure to said microwave energy within said foodstuff and heat energy newly released from said additional exposure from said microwave absorptive material.
Claim 7
Dependent Claim
29 words
In a method of baking a foodstuff, according to claim 5, the added step of: monitoring the temperature of said baking chamber during said additional exposure to microwave energy.
Claim 8
Dependent Claim
56 words
In a method of baking a foodstuff, according to claim 5, which includes: where said foodstuff is meat, heating said baking chamber during said first exposure to microwave energy to a temperature hot enough to ignite said meat when said meat is subsequently placed within said baking chamber to result in a barbecued portion of meat.
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |