Patent US4721140A successfully refreshed from Google Patents.
US4721140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover device for preventing spatters during the heating of food
Assignee: Individual
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Filing: 1987-02-25
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Granted: 1988-01-26
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Expires: 2007-02-25
Abstract
Abstract A screen device is adapted to cover a container or plate of food during heating, especially in microwave ovens. The screen device is formed as a sheet of open weave material, preferably polyester, and a plurality of plastic weight elements are secured to the peripheral margin of the sheet.
Inventors
- 👤 Stanley W. Coker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:01
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/26; A47J; A47J36/00; A47J36/06; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A screen device adapted to cover a container of food during cooking and heating in order to prevent food spatters, said container has a food support surface and an upstanding rim therearound, the screen device comprising: a sheet of flexible, open-weave material configured in a selected geometric shape having a surrounding peripheral edge and a margin adjacent said edge, said sheet sized to be placed across the container and overlap said rim; and a plurality of weight elements secured to said sheet at spaced-apart locations along said peripheral margin whereby said weight elements cause said margin area to hang downwardly alongside said container thereby maintaining a central portion of said sheet in an extended position across said container.
Claim 2
Dependent Claim
118 words
A screen device adapted to cover a container of food during cooking and heating in order to prevent food spatters, said container has a food support surface and an upstanding rim therearound, the screen device comprising: a sheet of flexible, open-weave material configured in a selected geometric shape having a surrounding peripheral edge and a margin adjacent said edge, said sheet sized to be placed across the container and overlap said rim; and a plurality of weight elements secured to said sheet at spaced-apart locations along said peripheral margin whereby said weight elements cause said margin area to hang downwardly alongside said container thereby maintaining a central portion of said sheet in an extended position across said container.
Claim 3
Dependent Claim
12 words
A screen device according to claim 1 wherein said material is non-metallic.
Claim 4
Dependent Claim
18 words
A screen device according to claim 2 wherein said material has a melting temperature greater than 120° C.
Claim 5
Dependent Claim
12 words
A screen device according to claim 2 wherein said material is polyester.
Claim 6
Dependent Claim
16 words
A screen device according to claim 1 wherein said weight elements are formed of Polyethelene Terephthalate.
Claim 7
Dependent Claim
27 words
A screen device according to claim 1 wherein said sheet is configured as a polygon, there being a weight element located at each vertex of the polygon.
Claim 8
Dependent Claim
56 words
A screen device according to claim 5 wherein said weight elements are each toroidal in shape and form of complimentary mating half sections, there being a first half section on one side of said sheet and a second half section on the other side of said sheet, said first and second half sections being secured together.
Claim 9
Dependent Claim
66 words
A screen device according to claim 6 wherein said sheet having holes formed in said margin at the location of each weight element, each said first half section including an upright axial post extending through a respective hole and having an axial passageway therethrough, each said second half section having an axial bore sized to matably receive the axial post of the complimentary first half section.
Claim 10
Dependent Claim
32 words
A screen device according to claim 7 wherein each post and each respective bore have a complimentary circumferential rib and groove structure to snap-lock the respective first and second half second together.
Claim 11
Dependent Claim
44 words
A screen device according to claim 1 wherein said margin includes a hem defining a peripheral chamber, said weight elements being elongated masses received at spaced locations in said peripheral chamber, and including retaining means for retaining each weight element at a respective location.
Claim 12
Dependent Claim
47 words
A screen device according to claim 10 wherein said sheet is configured as a polygon having a selected number of vertices for the sides thereof, there being a pair of said weights elements located in closely-spaced relation to each vertex along respective adjacent sides of said sheet.
Claim 13
Dependent Claim
20 words
A screen device according to claim 1 wherein at least one of said weight elements is formed of magnetic material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |