Patent US3709772A successfully refreshed from Google Patents.
US3709772A
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Thermally insulated composite article
Assignee: Motors Liquidation Co
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Filing: 1971-07-16
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Granted: 1973-01-09
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Expires: 1991-07-16
Abstract
Abstract A THERMALLY INSULATED FLUID CONDUCTING COMPOSITE ARTICLE INCLUDING A RIGID INNER CORE MEMBER OF EROSION RESISTANT MATERIAL DEFINING A FLUID PASSAGE AND BEING CUSHIONED FROM AN OUTER METALLIC SHELL BY AN INTERMEDIATE LAYER OF RESILIENT MATERIAL. THE CORE MEMBER THERMALLY INSULATES THE OUTER METAL SHELL FROM THE FLUID FLOWING THERETHROUGH WHILE TH CUSHIONING LAYER ABSORBS SHOCK LOADS BETWEEN THE CORE AND THE SHELL THEREBY REDUCING THE POSSIBILITYOF FRACTURE OF THE SOMEWHAT FRAGILE RIGID CORE MEMBER.
Inventors
- 👤 H Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:27
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; F; F01; F01N; F01N13/00; F01N13/14; B32B18/00; F16; F16L; F16L59/00; F16L59/14; F16L59/147; B32B2266/00; B32B2266/04; B32B2307/00; B32B2307/30; B32B2307/304; B32B2307/50; B32B2307/554; F01N2310/00; F01N2310/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24744; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249969; Y10T428/249987; Y10T428/24999; Y10T428/26
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |