Patent US4550355A successfully refreshed from Google Patents.
Patent US2679730A successfully refreshed from Google Patents.
US2679730A
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Handling of liquefied gases
Assignee: Maschinenfabrik Esslingen AG
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Filing: 1950-08-30
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Granted: 1954-06-01
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Expires: 1970-08-30
Abstract
No abstract record available.
Inventors
- 👤 Kobold Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:38
CPC Classifications
F; F17; F17C; F17C5/00; F17C5/02; F17C5/04; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1371427A
Cited
US2059942A
Cited
US2379215A
Cited
US2608070A
Cited
US2499404A
Cited
US2466863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |