Patent US3158491A successfully refreshed from Google Patents.
US3158491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food container
Assignee: Primerica Inc
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Filing: 1963-02-26
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Granted: 1964-11-24
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Robert A Farrell
- 👤 George V Skowronski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:51
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2028; B65D77/2032; B65D77/2044; B65D77/2048; B65D77/2056; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205; B65D2577/2075; B65D2577/2091; Y; Y10; Y10S; Y10S229/00; Y10S229/924; Y10S229/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A TAMPERPROOF SEALED PACKAGE COMPRISING A LEAKPROOF RECEPTACLE PORTION HAVING A BOTTOM PANEL AND SIDE WALLS CONNECTED TO SAID BOTTOM PANEL, AND A CONTINUOUS OUTWARDLY EXTENDING FLANGE CONNECTED TO THE UPPER EDGES OF SAID SIDE WALLS; A PRODUCT CONTAINED IN SAID RECEPTACLE PORTION; AND A COVER SUBSTANTIALLY COEXTENSIVE WITH THE OUTER PERIMETER OF SAID FLANGE CLOSING SAID RECEPTACLE PORTION, SAID COVER COMPRISING A FRANGIBLE MATERIAL SEALED TO SAID FLANGE BY A LAYER OF LIQUID IMPERMEABLE HEAT-ACTIVATED COATING EXTENDING OVER SUBSTANTIALLY THE ENTIRE INNER SURFACE OF SAID MATERIAL, SAID FRANGIBLE MATERIAL HAVING A TEAR STRIP WITH A PULL TAB DEFINED BY A PAIR OF SPACED SUBSTANTIALLY PARALLEL LINES OF WEAKNESS POSITIONED ADJACENT AND INWARDLY OF THE FLANGE OF THE RECEPTACLE PORTION.
Claim 2
Dependent Claim
120 words
A TAMPERPROOF SEALED PACKAGE COMPRISING A LEAKPROOF RECEPTACLE PORTION HAVING A BOTTOM PANEL AND SIDE WALLS CONNECTED TO SAID BOTTOM PANEL, AND A CONTINUOUS OUTWARDLY EXTENDING FLANGE CONNECTED TO THE UPPER EDGES OF SAID SIDE WALLS; A PRODUCT CONTAINED IN SAID RECEPTACLE PORTION; AND A COVER SUBSTANTIALLY COEXTENSIVE WITH THE OUTER PERIMETER OF SAID FLANGE CLOSING SAID RECEPTACLE PORTION, SAID COVER COMPRISING A FRANGIBLE MATERIAL SEALED TO SAID FLANGE BY A LAYER OF LIQUID IMPERMEABLE HEAT-ACTIVATED COATING EXTENDING OVER SUBSTANTIALLY THE ENTIRE INNER SURFACE OF SAID MATERIAL, SAID FRANGIBLE MATERIAL HAVING A TEAR STRIP WITH A PULL TAB DEFINED BY A PAIR OF SPACED SUBSTANTIALLY PARALLEL LINES OF WEAKNESS POSITIONED ADJACENT AND INWARDLY OF THE FLANGE OF THE RECEPTACLE PORTION.
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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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |