US5350904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Susceptors having disrupted regions for differential heating in a microwave oven
Assignee: General Mills Marketing Inc
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Filing: 1992-07-20
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Granted: 1994-09-27
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Expires: 2012-07-20
Abstract
Abstract A packaging system is disclosed which includes a susceptor heating means having selective responsiveness to microwave radiation. The susceptor surface has a plurality of regions, where at least one region has an altered responsiveness to microwave radiation which is achieved by disruptions in the susceptor surface. A method for making regions of a susceptor selectively responsive to microwave heating by disrupting the continuity of the metallized film of the susceptor is also disclosed.
Inventors
- 👤 Jonathan D. Kemske
- 👤 James R. Consaul
- 👤 Diane R. Rosenwald
- 👤 Robert B. Shomo, Jr.
- 👤 Dan J. Wendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:28
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D2581/00; B65D2581/34; B65D2581/3437; B65D2581/3439; B65D2581/344; B65D2581/3463; B65D2581/3466; B65D2581/3467; B65D2581/3471; B65D2581/3472; B65D2581/3486; B65D2581/3487; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A microwave heatable sheet for cooking food stuff comprising: (a) a base layer; (b) a microwave receptor material layer which is attached to and extends over an area of said base layer and which heats up in the presence of microwave energy, said microwave receptor material layer having at least one selected mechanically embossed region in said area which is formed into small pieces to reduce the heating characteristic such that the base layer remains structurally intact, said at least one selected region defining a subarea less than said area and having a different heating characteristic in comparison with the remainder of said area.
Claim 2
Dependent Claim
104 words
A microwave heatable sheet for cooking food stuff comprising: (a) a base layer; (b) a microwave receptor material layer which is attached to and extends over an area of said base layer and which heats up in the presence of microwave energy, said microwave receptor material layer having at least one selected mechanically embossed region in said area which is formed into small pieces to reduce the heating characteristic such that the base layer remains structurally intact, said at least one selected region defining a subarea less than said area and having a different heating characteristic in comparison with the remainder of said area.
Claim 3
Dependent Claim
120 words
A package for holding products to be cooked by microwave cooking, said package being formed from a microwave heatable sheet for cooking food stuff comprising: (a) a base layer; (b) a microwave receptor material layer which is attached to and extends over an area of said base layer and which heats up in the presence of microwave energy, said microwave receptor material layer having at least one selected mechanically embossed region in said area which is formed into small pieces to reduce the heating characteristic such that the base layer remains structurally intact, said at least one selected region defining a subarea less than said area and having a different heating characteristic in comparison with the remainder of said area.
Claim 4
Dependent Claim
120 words
A package for holding products to be cooked by microwave cooking, said package being formed from a microwave heatable sheet for cooking food stuff comprising: (a) a base layer; (b) a microwave receptor material layer which is attached to and extends over an area of said base layer and which heats up in the presence of microwave energy, said microwave receptor material layer having at least one selected mechanically embossed region in said area which is formed into small pieces to reduce the heating characteristic such that the base layer remains structurally intact, said at least one selected region defining a subarea less than said area and having a different heating characteristic in comparison with the remainder of said area.
References Cited (Backward Citations)
US3079913A
Cited
US3887920A
Cited
US3219460A
Cited
US3302632A
Cited
US3394007A
Cited
US3547661A
Cited
US3835281A
Cited
US3941967A
Cited
US4190757A
Cited
FR2382878A1
Cited
US4267420A
Cited
US4495392A
Cited
US4230924A
Cited
US4258086A
Cited
US4306133A
Cited
US4641005A
Cited
US4398077A
Cited
US4626641A
Cited
EP0205304A2
Cited
EP0206811A2
Cited
US4676857A
Cited
US4800247A
Cited
US4703148A
Cited
US4835352A
Cited
US4865921A
Cited
US4801774A
Cited
US4908246A
Cited
US5039833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-26 | 1998-03-28 | 1998-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-26 | 2002-03-28 | 2002-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-26 | 2006-03-28 | 2006-09-27 | $7700.00 | Window Closed / Lapsed |