US3108881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging food
Assignee: Continental Can Co Inc
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Filing: 1959-03-05
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Granted: 1963-10-29
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Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 Fred B Shaw
- 👤 Florren E Long
- 👤 Robert A Roof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:01
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A METHOD OF PACKAGING FOOD COMPRISING THE STEPS OF PROVIDING A PLIABLE HEAT SEALABLE SUBSTANTIALLY WATER IMPERVIOUS PLASTIC BAG HAVING AN OPEN END, PLACING THE FOOD IN THE BAG TOGETHER WITH SUCH LIQUID AS REQURED TO FILL THE BAG WITH VAPOR WHEN HEATED, HEAT SEALING A PORTION OF THE BAG ADJACENT THE OPEN END TO PARTIALLY PERMANENTLY CLOSE THE BAG AND TO DEFINE A VENT PASSAGE, HEATING IN AIR THE BAG AND THE CONTENTS OF THE BAG TO VAPORIZE THE LIQUID WITHIN THE BAG AND THUS PURGE AIR FROM WITHIN THE BAG THROUGH THE VENT PASSAGE, COOLING THE CONTENTS OF THE BAG TO CONDENSE THE VAPOR WITHIN THE BAG WITH A PORTION OF THE VAPOR CONDENSATE TEMPORARILY SEALING THE VENT PASSAGE AND A RESULTANT COLLAPSING OF THE BAG ABOUT THE FOOD, AND THEN FURTHER HEAT SEALING THE BAG TO COMPLETELY CLOSE THE OPEN END WHILE THE BAG REMAINS TEMPORARILY SEALED.
Claim 2
Independent Claim
150 words
A METHOD OF PACKAGING FOOD COMPRISING THE STEPS OF PROVIDING A PLIABLE HEAT SEALABLE SUBSTANTIALLY WATER IMPERVIOUS PLASTIC BAG HAVING AN OPEN END, PLACING THE FOOD IN THE BAG TOGETHER WITH SUCH LIQUID AS REQURED TO FILL THE BAG WITH VAPOR WHEN HEATED, HEAT SEALING A PORTION OF THE BAG ADJACENT THE OPEN END TO PARTIALLY PERMANENTLY CLOSE THE BAG AND TO DEFINE A VENT PASSAGE, HEATING IN AIR THE BAG AND THE CONTENTS OF THE BAG TO VAPORIZE THE LIQUID WITHIN THE BAG AND THUS PURGE AIR FROM WITHIN THE BAG THROUGH THE VENT PASSAGE, COOLING THE CONTENTS OF THE BAG TO CONDENSE THE VAPOR WITHIN THE BAG WITH A PORTION OF THE VAPOR CONDENSATE TEMPORARILY SEALING THE VENT PASSAGE AND A RESULTANT COLLAPSING OF THE BAG ABOUT THE FOOD, AND THEN FURTHER HEAT SEALING THE BAG TO COMPLETELY CLOSE THE OPEN END WHILE THE BAG REMAINS TEMPORARILY SEALED.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |