Patent US3822186A successfully refreshed from Google Patents.
US3822186A
Expired / Lapsed
US
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Pressure vessel
Assignee: Gebrueder Boehler and Co AG
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Filing: 1971-08-09
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Granted: 1974-07-02
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Expires: 1991-08-09
Abstract
Abstract An inner container has an inner bottom and defines an inner space and is adapted to hold a liquid coolant in said inner space to a predetermined level. An outer container contains said inner container and has an outer bottom spaced below said inner bottom. The outer container defines with said inner container an outer space extending below and around said inner container. A solid heat-insulating layer extends in said outer space extending below and around said inner container and upwardly at least to said predetermined level.
Inventors
- 👤 G Rajakovics
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:07
CPC Classifications
G; G21; G21C; G21C11/00; G21C11/08; G21C11/081; G21C13/00; G21C13/08; G21C13/087; G21C13/0875; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |