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US2613329A Expired / Lapsed US ⏱️ 0.0 years remaining

Altimeter switch

Assignee: SPX Technologies Inc
•
Filing: 1949-04-13
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Granted: 1952-10-07
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Expires: 1969-04-13
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Abstract

No abstract record available.

Inventors

  • 👤 Ralph W Hewes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 17:39
CPC Classifications
G; G01; G01C; G01C5/00; G01C5/06; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1556; Y10T74/21; Y10T74/2133; Y10T74/2136

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2046005A Cited
US2391123A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-10-07 1956-04-07 1956-10-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-10-07 1960-04-07 1960-10-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-10-07 1964-04-07 1964-10-07 $7700.00 Window Closed / Lapsed

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