US3873735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food package for heating and venting
Assignee: Intercontinental Great Brands LLC
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Filing: 1971-05-04
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Granted: 1975-03-25
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Expires: 1991-05-04
Abstract
Abstract Several packages are disclosed which contain food and which are used for storing, heating and serving the food. The food may be heated by inserting the package in an electric toaster or other similar heating device.
Inventors
- 👤 Manuel L Chalin
- 👤 Arthur E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5816; B65D75/5805; B65D75/5827; B65D81/00; B65D81/34; B65D81/3492; B65D2205/00; B65D75/28; B65D75/30; B65D75/32; Y; Y10; Y10S; Y10S206/00; Y10S206/806; Y10S206/815
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
A SEALED FOOD PACKAGE, FOR STORING FOOD AND HEATING THE FOOD IN SITU, COMPRISING A TRAY OF HEAT-RESISTANT, NON-TOXIC, NON-POROUS, RELATIVELY RIGID SHEET MATERIAL HAVING A DEPRESSION FILLED WITH FOOD, A SEALING FLANGE AROUND THE PERIPHERY OF SAID DEPRESSION, SAID SEALING FLANGE HAVING AN INDENT EXTENDING FROM A FREE EDGE OF SAID FLANGE TOWARD AND BEING SPACED FROM SAID DEPRESSION, AND A COVER OF PLIABLE, HEAT-RESISTANT, THERMALLY CONDUCTIVE, NON-POROUS SHEET MATERIAL, OVERLYING SAID DEPRESSION, FLANGE AROUND THE ENTIRE PERIPHERY OF SAID DEPRESSION AND SAID FLANGE AROUND THE ENTIRE PERIPHERY OF SAID DEPRESSION AND HAVING BOTH FACES THEREOF EXPOSED IN THE AREA, WHEREBY THE PACKAGE SAID INDENT TO PROVIDE A GRIPPING AREA, WHEREBY THE PACKAGE MAY BE VENTED BY TEARING SAID COVER INWARDLY FROM SAID GRIPPING AREA PRIOR TO HEATING, SAID COVER CONTAINING AN EXTENSION OUTWARDLY FROM A FREE EDGE OF SAID FLANGE TO PROVIDE A HANDLE SAID EXTENSION OVERLYING SAID FREE EDGE HAVING SAID INDENT, AND SAID COVER CONTAINING A HOLE IN SAID EXTENSION ADJACENT SAID INDENT TO FACILITATE GRIPPING THE COVER OVERLYING SAID INDENT TO VENT SAID PACKAGE.
Claim 2
Dependent Claim
179 words
A SEALED FOOD PACKAGE, FOR STORING FOOD AND HEATING THE FOOD IN SITU, COMPRISING A TRAY OF HEAT-RESISTANT, NON-TOXIC, NON-POROUS, RELATIVELY RIGID SHEET MATERIAL HAVING A DEPRESSION FILLED WITH FOOD, A SEALING FLANGE AROUND THE PERIPHERY OF SAID DEPRESSION, SAID SEALING FLANGE HAVING AN INDENT EXTENDING FROM A FREE EDGE OF SAID FLANGE TOWARD AND BEING SPACED FROM SAID DEPRESSION, AND A COVER OF PLIABLE, HEAT-RESISTANT, THERMALLY CONDUCTIVE, NON-POROUS SHEET MATERIAL, OVERLYING SAID DEPRESSION, FLANGE AROUND THE ENTIRE PERIPHERY OF SAID DEPRESSION AND SAID FLANGE AROUND THE ENTIRE PERIPHERY OF SAID DEPRESSION AND HAVING BOTH FACES THEREOF EXPOSED IN THE AREA, WHEREBY THE PACKAGE SAID INDENT TO PROVIDE A GRIPPING AREA, WHEREBY THE PACKAGE MAY BE VENTED BY TEARING SAID COVER INWARDLY FROM SAID GRIPPING AREA PRIOR TO HEATING, SAID COVER CONTAINING AN EXTENSION OUTWARDLY FROM A FREE EDGE OF SAID FLANGE TO PROVIDE A HANDLE SAID EXTENSION OVERLYING SAID FREE EDGE HAVING SAID INDENT, AND SAID COVER CONTAINING A HOLE IN SAID EXTENSION ADJACENT SAID INDENT TO FACILITATE GRIPPING THE COVER OVERLYING SAID INDENT TO VENT SAID PACKAGE.
Claim 3
Dependent Claim
54 words
Sealed package as claimed in claim 1 wherein said extension is folded onto said cover overlying said flange and depression during storage and unfolded during use. 3. Sealed package as claimed in claim 1 wherein said extension contains labeling information and is formed with a hole for hanging said package in display or storage.
Claim 4
Dependent Claim
31 words
Sealed package as claimed in claim 1 wherein said extension is provided with a folded section of sheet material having its end margins sealed to the end margin of said extension.
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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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |