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Patent US2040880A successfully refreshed from Google Patents.
Patent US2443502A successfully refreshed from Google Patents.
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US2443502A Expired / Lapsed US ⏱️ 0.0 years remaining

Engine construction

Assignee: Individual
•
Filing: 1941-02-08
•
Granted: 1948-06-15
•
Expires: 1961-02-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Constantine N Guerasimoff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 12:51
CPC Classifications
F; F02; F02B; F02B25/00; F02B25/02; F02B25/12; F02B31/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

SE79068C1 Cited
SE102667C1 Cited
US841830A Cited
US1239523A Cited
US1127810A Cited
US1609449A Cited
DE461336C Cited
US1867683A Cited
US1684074A Cited
US1767701A Cited
US1662989A Cited
US1741417A Cited
US2121813A Cited
US1914793A Cited
US1838495A Cited
GB373647A Cited
FR694905A Cited
GB355813A Cited
GB369229A Cited
US1942127A Cited
FR710978A Cited
US1927374A Cited
US1977752A Cited
US2019298A Cited
DE615602C Cited
US1993179A Cited
US2132805A Cited
US2054562A Cited
US2006613A Cited
US2062951A Cited
US2146032A Cited
GB442340A Cited
FR821488A Cited
US2099416A Cited
US2184603A Cited
US2097206A Cited
US2067461A Cited
US2142084A Cited
US2214891A Cited
US2208631A Cited
US2204068A Cited
US2206322A Cited
DE704734C Cited
GB523137A Cited
US2243263A Cited
US2295120A Cited
US2336918A Cited
DK15981A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1951-06-15 1951-12-15 1952-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1955-06-15 1955-12-15 1956-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1959-06-15 1959-12-15 1960-06-15 $7700.00 Window Closed / Lapsed

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