Patent US3232732A successfully refreshed from Google Patents.
US3232732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating container and method of making same
Assignee: Individual
•
Filing: 1962-01-29
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Granted: 1966-02-01
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 George L Wax
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:13
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02; A47J41/022; A47J41/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF SUBSTANTIALLY EVACUATING AND SEALING THE SPACE BETWEEN THE WALLS OF A DOBULE WALLED CONTAINER HAVING AN APERTURE FORMED IN ONE OF THE WALLS, THE METHOD COMPRISING ADHERING A SLUG OF MATERIAL TO SAID WALL ABOVE SAID APERTURE, SAID SLUG BEING MADE OF A MATERIAL WHICH HAD A MELTING POINT BELOW THE MELTING POINT OF SAID WALLS, HEATING THE WHOLE OF SAID CONTAINER WHEREBY AIR WITHIN SAID AIR SPACE IS HEATED AND EXPANDS THROUGH SAID APERTURE TO SUBSTANTIALLY EVAUCATE SAID AIR SPACE UNTIL SAID SLUG REACHES ITS SOFTENING POINT, AND PERMITTING SAID SLUG TO FLOW OVER SAID APERTURE AND SEAL OFF SAID SUBSTANTIALLY EVACUATED AIR SPACE.
Claim 2
Independent Claim
108 words
A METHOD OF SUBSTANTIALLY EVACUATING AND SEALING THE SPACE BETWEEN THE WALLS OF A DOBULE WALLED CONTAINER HAVING AN APERTURE FORMED IN ONE OF THE WALLS, THE METHOD COMPRISING ADHERING A SLUG OF MATERIAL TO SAID WALL ABOVE SAID APERTURE, SAID SLUG BEING MADE OF A MATERIAL WHICH HAD A MELTING POINT BELOW THE MELTING POINT OF SAID WALLS, HEATING THE WHOLE OF SAID CONTAINER WHEREBY AIR WITHIN SAID AIR SPACE IS HEATED AND EXPANDS THROUGH SAID APERTURE TO SUBSTANTIALLY EVAUCATE SAID AIR SPACE UNTIL SAID SLUG REACHES ITS SOFTENING POINT, AND PERMITTING SAID SLUG TO FLOW OVER SAID APERTURE AND SEAL OFF SAID SUBSTANTIALLY EVACUATED AIR SPACE.
References Cited (Backward Citations)
US2736143A
Cited
US2988852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |