US5173580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Susceptor with conductive border for heating foods in a microwave oven
Assignee: Graphic Packaging International LLC
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Filing: 1990-11-15
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Granted: 1992-12-22
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Expires: 2010-11-15
Abstract
Abstract An apparatus to provide more uniform heating of a food product in a microwave oven is disclosed. The invention employs a susceptor in combination with a conductive sheet forming a border around the edge of the susceptor and having an opening in the center exposing the susceptor.
Inventors
- 👤 Liza Levin
- 👤 Peter S. Pesheck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:57
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3439; B65D2581/344; B65D2581/3471; B65D2581/3472; B65D2581/3486; B65D2581/3489; B65D2581/3494
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
An apparatus for heating food in a microwave oven, comprising: a first sheet of material defining susceptor means for heating in response to microwave radiation; a second sheet of material defining a conductive reflective border region surrounding a transmissive center area, the second sheet of material being closely adjacent to the susceptor means; and, the first sheet of material and the second sheet of material being located on a same side of a food item to be heated.
Claim 2
Independent Claim
78 words
An apparatus for heating food in a microwave oven, comprising: a first sheet of material defining susceptor means for heating in response to microwave radiation; a second sheet of material defining a conductive reflective border region surrounding a transmissive center area, the second sheet of material being closely adjacent to the susceptor means; and, the first sheet of material and the second sheet of material being located on a same side of a food item to be heated.
Claim 3
Dependent Claim
14 words
The apparatus according to claim 1, wherein: the first sheet of material is planar.
Claim 4
Dependent Claim
14 words
The apparatus according to claim 2, wherein: the second sheet of material is planar.
Claim 5
Dependent Claim
24 words
The apparatus according to claim 3, wherein: the first sheet of material and the second sheet of material are substantially parallel to each other.
Claim 6
Dependent Claim
24 words
The apparatus according to claim 4, wherein: the second sheet of material comprises a sheet of Aluminum foil adhesively bonded to the susceptor means.
Claim 7
Dependent Claim
23 words
The apparatus according to claim 5, wherein: the susceptor means comprises a sheet of metallized polyester adhesively bonded to a sheet of paper.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |