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US2482990A Expired / Lapsed US ⏱️ 0.0 years remaining

Piston ring blank

Assignee: SPX Technologies Inc
•
Filing: 1948-02-09
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Granted: 1949-09-27
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Expires: 1968-02-09
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Abstract

No abstract record available.

Inventors

  • 👤 Holly M Olson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 19:41
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16J9/061; F16J9/063; F16J9/12; F16J9/14; F16J9/145; F16J9/20; F16J9/203; F16J9/206; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49274; Y10T428/00; Y10T428/12; Y10T428/12201; Y10T428/12215; Y10T428/12229; Y10T428/12361

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1734356A Cited
US1719847A Cited
US1783886A Cited
US2397636A Cited
US2311729A Cited
US2334456A Cited
US2409966A Cited
US2421175A Cited
US2432602A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-09-26 1953-03-28 1953-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-09-26 1957-03-28 1957-09-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-09-26 1961-03-28 1961-09-27 $7700.00 Window Closed / Lapsed

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