US2950202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meat spoilage indicator
Assignee: Hygrade Food Products Corp
•
Filing: 1958-07-29
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Granted: 1960-08-23
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Expires: 1978-07-29
Abstract
No abstract record available.
Inventors
- 👤 Maxwell C Brockmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/02; G01N33/12; Y; Y10; Y10S; Y10S435/00; Y10S435/81; Y10S435/8215; Y10S435/822; Y10S435/853; Y10S435/854; Y10S435/856; Y10S435/857; Y10S435/911; Y10S435/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A TEMPERATURE INDICATOR COMPRISING A PACKAGE CONTAINING TWO SEPARATE COMPARTMENT, ONE COMPARTMENT CONTAINING A LYOPHILIZED MICROORGANISM CAPABLE OF ACCELERATED GROWTH WITH INCREASING TEMPERATURE, A DRIED NUTRIENT FOR THE MICROORGANISM AND AN INDICATOR FOR SHOWING THAT THE GROWTH OF MICROORGANISM IS GREATER THAN A DESIRED LIMIT, THE SECOND COMPARTMENT CONTAINING WATER AND THE TWO COMPARTMENTS BEING SEPARATED BY A MEMBRANE WHICH IS CAPABLE OF BEING BROKEN MANUALLY.
Claim 2
Dependent Claim
66 words
A TEMPERATURE INDICATOR COMPRISING A PACKAGE CONTAINING TWO SEPARATE COMPARTMENT, ONE COMPARTMENT CONTAINING A LYOPHILIZED MICROORGANISM CAPABLE OF ACCELERATED GROWTH WITH INCREASING TEMPERATURE, A DRIED NUTRIENT FOR THE MICROORGANISM AND AN INDICATOR FOR SHOWING THAT THE GROWTH OF MICROORGANISM IS GREATER THAN A DESIRED LIMIT, THE SECOND COMPARTMENT CONTAINING WATER AND THE TWO COMPARTMENTS BEING SEPARATED BY A MEMBRANE WHICH IS CAPABLE OF BEING BROKEN MANUALLY.
References Cited (Backward Citations)
US2485566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |