Patent US3231125A successfully refreshed from Google Patents.
US3231125A
Expired / Lapsed
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Insulating material for vacuum insulating system
Assignee: Aerojet Rocketdyne Inc
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Filing: 1962-08-30
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Granted: 1966-01-25
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Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Frank M Sigona
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:26
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/001; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN APPARATUS OF THE CLASS DESCRIBED COMPRISING A CONTAINER, SAID CONTAINER HAVING A DOUBLE WALL, AN INSULATING MATERIAL IN SAID DOUBLE WALL, SAID INSULATING MATERIAL COMPRISING ALTERNATE LAYERS OF SILK AND A POLYETHYLENE TEREPHTHALIC FILM HAVING A COATING OF ALUMINUM THEREON, AND MEANS FOR EVACUATING SAID SPACE BETWEEN THE DOUBLE WALLS, WHEREBY THE HEAT TRANSMISSION THROUGH THE DOUBLE WALLS IS SUBSTANTIALLY DECREASED.
Claim 2
Independent Claim
62 words
AN APPARATUS OF THE CLASS DESCRIBED COMPRISING A CONTAINER, SAID CONTAINER HAVING A DOUBLE WALL, AN INSULATING MATERIAL IN SAID DOUBLE WALL, SAID INSULATING MATERIAL COMPRISING ALTERNATE LAYERS OF SILK AND A POLYETHYLENE TEREPHTHALIC FILM HAVING A COATING OF ALUMINUM THEREON, AND MEANS FOR EVACUATING SAID SPACE BETWEEN THE DOUBLE WALLS, WHEREBY THE HEAT TRANSMISSION THROUGH THE DOUBLE WALLS IS SUBSTANTIALLY DECREASED.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |