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US3173267A Expired / Lapsed US ⏱️ 0.0 years remaining

Steam cycle in which more than two stages of feed water heating are carried out by one exhaust steam system from auxiliary turbine

Assignee: Kawasaki Heavy Industries Ltd
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Filing: 1964-04-03
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Granted: 1965-03-16
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Expires: 1984-04-03
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Abstract

No abstract record available.

Inventors

  • 👤 Takeda Yasuo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:17
CPC Classifications
F; F01; F01K; F01K7/00; F01K7/34; F01K7/44

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2653447A Cited
US3083536A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-15 1968-09-14 1969-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-15 1972-09-14 1973-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-15 1976-09-14 1977-03-16 $7700.00 Window Closed / Lapsed

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