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US2834324A Expired / Lapsed US ⏱️ 0.0 years remaining

Vapor generator with high temperature pendent superheater platens

Assignee: Babcock and Wilcox Co
•
Filing: 1953-02-12
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Granted: 1958-05-13
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Expires: 1973-02-12
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Abstract

No abstract record available.

Inventors

  • 👤 Glen J Schoessow

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 21:36
CPC Classifications
F; F22; F22G; F22G7/00; F22G7/14; F22B; F22B21/00; F22B21/34; F22B21/341; F22B21/343

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1924918A Cited
US2033077A Cited
US2015328A Cited
US2114224A Cited
FR832563A Cited
US2244144A Cited
US2310801A Cited
US2308762A Cited
FR872266A Cited
US2477950A Cited
US2519566A Cited
US2536072A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-05-12 1961-11-11 1962-05-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-05-12 1965-11-11 1966-05-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-05-12 1969-11-11 1970-05-13 $7700.00 Window Closed / Lapsed

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