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US2808234A
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Apparatus for condensing steam
Assignee: Rosenblads Patenter AB
•
Filing: 1954-05-25
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Granted: 1957-10-01
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Expires: 1974-05-25
Abstract
No abstract record available.
Inventors
- 👤 Rosenblad Curt Fredrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
F; F28; F28B; F28B5/00; Y; Y10; Y10S; Y10S261/00; Y10S261/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1947863A
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US2076033A
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US2329727A
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US2360900A
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US2247056A
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US2272261A
Cited
US2308721A
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US2550683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |