US2578437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal processing of food products
Assignee: Libby Mcneill and Libby
•
Filing: 1950-03-10
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Granted: 1951-12-11
•
Expires: 1970-03-10
Abstract
No abstract record available.
Inventors
- 👤 Charles F Martin
- 👤 Virgil O Wodicka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:02
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE PROCESS FOR THERMAL TREATMENT OF FOODS OF HEAVY CONSISTENCY IN SEALED CONTAINERS WHICH COMPRISES HEATING THE CONTAINERS BY STEAM UNDER PRESSURE UNTIL THE CONTAINERS AND OUTER PORTIONS OF THE FOOD HAVE REACHED THE DESIRED TREATMENT TEMPERATURE, HOLDING THE CONTAINERS UNDER PRESSURE WITHOUT ADDITIONAL APPLICATION OF HEAT WHILE THE HEAT ABSORBED BY THE CONTAINER AND OUTER PORTION OF THE CONTENTS PENETRATES TO THE CENTER CONTENTS AND PRODUCES THE DESIRED STERILING VALUES, AND THEREAFTER COOLING THE CONTAINERS AND CONTENTS UNDER PRESSURE.
Claim 2
Dependent Claim
80 words
THE PROCESS FOR THERMAL TREATMENT OF FOODS OF HEAVY CONSISTENCY IN SEALED CONTAINERS WHICH COMPRISES HEATING THE CONTAINERS BY STEAM UNDER PRESSURE UNTIL THE CONTAINERS AND OUTER PORTIONS OF THE FOOD HAVE REACHED THE DESIRED TREATMENT TEMPERATURE, HOLDING THE CONTAINERS UNDER PRESSURE WITHOUT ADDITIONAL APPLICATION OF HEAT WHILE THE HEAT ABSORBED BY THE CONTAINER AND OUTER PORTION OF THE CONTENTS PENETRATES TO THE CENTER CONTENTS AND PRODUCES THE DESIRED STERILING VALUES, AND THEREAFTER COOLING THE CONTAINERS AND CONTENTS UNDER PRESSURE.
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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |