Patent US2759307A successfully refreshed from Google Patents.
US2759307A
Expired / Lapsed
US
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Method and apparatus for filling containers
Assignee: Gerber Products Co
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Filing: 1953-08-31
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Granted: 1956-08-21
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Eolkin Dave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:40
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/02; B65B31/025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A METHOD OF SEALING CONTAINERS UNDER RELATIVELY LOW VACUUM AND IN THE PRESENCE OF A REDUCED AMOUNT OF OXYGEN COMPRISING FILLING SAID CONTAINER WITH NORMAL HEADSPACE, SPREADING A STRATUM OF STEAM AND INERT GAS AT LOW PRESSURE AND LOW VELOCITY OVER THE TOP OF THE CONTAINER TO DRIVE OUT AIR FROM THE HEADSPACE AND FILL THE HEADSPACE WITH A MIXTURE OF STREAM AND INERT GAS, APPLYING A CLOSURE TO SAID CONTAINER, AND SEALING SAID CLOSURE, SAID METHOD BEING CHARACTERIZED BY THE FACT THAT DURING THE SPREADING STEP SAID STRATUM IS INITIALLY PREDOMINANTLY STEAM AND THEN PREDOMINANTLY INERT GAS.
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |