US2569645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for sterilizing canned foods
Assignee: Chain Belt Co
•
Filing: 1948-11-06
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Granted: 1951-10-02
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Expires: 1968-11-06
Abstract
No abstract record available.
Inventors
- 👤 George K Viall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:05
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
PROCESS OF STERILIZING CANNED FOODS WHICH COMPRISES, SUBJECTING THE CANS FIRST TO CONTACT WITH A LIQUID HEATED SUBSTANTIALLY ABOVE 212* F. HAVING A BOILING POINT HIGHER THAN THE TEMPERATURE EMPLOYED TO STERILIZE THE CONTENTS OF THE CANS AND FOR A SUFFICIENT TIME TO STERILIZE THEIR CONTENTS, AND SUBSEQUENTLY COOLING THE CANS BY CONTACT WITH A COOLING LIQUID, THE AFORESAID PROCESSING BEING DONE WHILE MAINTAINING AROUND THE CANS A BODY OF NON-CONDENSABLE GAS AT A PRESSURE ABOVE ATMOSPHERIC PRESSURE BUT BELOW THAT WHICH IS DEVELOPED WITHIN THE CANS AT THE MAXIMUM STERILIZING TEMPERATURE EMPOLYED.
Claim 2
Dependent Claim
93 words
PROCESS OF STERILIZING CANNED FOODS WHICH COMPRISES, SUBJECTING THE CANS FIRST TO CONTACT WITH A LIQUID HEATED SUBSTANTIALLY ABOVE 212* F. HAVING A BOILING POINT HIGHER THAN THE TEMPERATURE EMPLOYED TO STERILIZE THE CONTENTS OF THE CANS AND FOR A SUFFICIENT TIME TO STERILIZE THEIR CONTENTS, AND SUBSEQUENTLY COOLING THE CANS BY CONTACT WITH A COOLING LIQUID, THE AFORESAID PROCESSING BEING DONE WHILE MAINTAINING AROUND THE CANS A BODY OF NON-CONDENSABLE GAS AT A PRESSURE ABOVE ATMOSPHERIC PRESSURE BUT BELOW THAT WHICH IS DEVELOPED WITHIN THE CANS AT THE MAXIMUM STERILIZING TEMPERATURE EMPOLYED.
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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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |