US2662018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frozen food indicator
Assignee: Individual
•
Filing: 1949-06-14
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Granted: 1953-12-08
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Expires: 1969-06-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/12; F; F25; F25D; F25D29/00; F25D29/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN INDICATOR FOR A FROZEN FOOD PACKAGE COMPRISING A TRANSPARENT CONTAINER AND A FRANGIBLE CAPSULE WITHIN SAID CONTAINER, SAID CAPSULE AND CONTAINER BEING CHARGED WITH DIFFERENTLY COLORED LIQUIDS FREEZING AND MELTING AT APPROXIMATELY THE SAFE TEMPERATURE FOR PREVENTING DETERIORATION OF QUICK-FROZEN FOOD AFTER FREEZING, ONE OF SAID LIQUIDS FREEZING AND MELTING AT A LOWER TEMPERATURE THAN THE OTHER THE LIQUID CHARGES IN SAID CONTAINER AND CAPSULE BEING RESPECTIVELY THE LOWER FREEZING IN THE CAPSULE AND COMPLETELY FILLING THE LATTER AND THE HIGHER FREEZING IN THE CONTAINER BUT ONLY PARTLY FILLING IT, WHEREBY WHEN SAID INDICATOR IS SUBJECTED TO A TEMPERATURE AT WHICH BOTH SAID LIQUIDS FREEZE THE CAPSULE IS BURST BY THE LIQUID FREEZING THEREIN WITHOUT BURSTING THE CONTAINER.
Claim 2
Dependent Claim
119 words
AN INDICATOR FOR A FROZEN FOOD PACKAGE COMPRISING A TRANSPARENT CONTAINER AND A FRANGIBLE CAPSULE WITHIN SAID CONTAINER, SAID CAPSULE AND CONTAINER BEING CHARGED WITH DIFFERENTLY COLORED LIQUIDS FREEZING AND MELTING AT APPROXIMATELY THE SAFE TEMPERATURE FOR PREVENTING DETERIORATION OF QUICK-FROZEN FOOD AFTER FREEZING, ONE OF SAID LIQUIDS FREEZING AND MELTING AT A LOWER TEMPERATURE THAN THE OTHER THE LIQUID CHARGES IN SAID CONTAINER AND CAPSULE BEING RESPECTIVELY THE LOWER FREEZING IN THE CAPSULE AND COMPLETELY FILLING THE LATTER AND THE HIGHER FREEZING IN THE CONTAINER BUT ONLY PARTLY FILLING IT, WHEREBY WHEN SAID INDICATOR IS SUBJECTED TO A TEMPERATURE AT WHICH BOTH SAID LIQUIDS FREEZE THE CAPSULE IS BURST BY THE LIQUID FREEZING THEREIN WITHOUT BURSTING THE CONTAINER.
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) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |