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US2997701A Expired / Lapsed US ⏱️ 0.0 years remaining

Plug-in cap with ground indicating light

Assignee: Harvey Hubbell Inc
•
Filing: 1958-10-16
•
Granted: 1961-08-22
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Expires: 1978-10-16
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Abstract

No abstract record available.

Inventors

  • 👤 Raphael J Costanzo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 19:56
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/717; H01R13/7172; H01R13/7177

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2303056A Cited
US2731629A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-08-21 1965-02-20 1965-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-08-21 1969-02-20 1969-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-08-21 1973-02-20 1973-08-22 $7700.00 Window Closed / Lapsed

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