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Patent US2937780A successfully refreshed from Google Patents.
US2937780A
Expired / Lapsed
US
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Housing for cold boiling liquids
Assignee: Constock Liquid Methane Corp
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Filing: 1958-07-07
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Granted: 1960-05-24
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Beckwith Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:05
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/04; F17C3/06; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0147; F17C2201/0157; F17C2201/03; F17C2201/035; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0325; F17C2203/0345; F17C2203/035; F17C2203/0354; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2177369A
Cited
US2859895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |