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US3399758A Expired / Lapsed US ⏱️ 0.0 years remaining

Moving sidewalk

Assignee: TRINITY AIRPORT EQUIPMENT Inc A CORP OF
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Filing: 1966-08-08
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Granted: 1968-09-03
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Expires: 1986-08-08
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Abstract

No abstract record available.

Inventors

  • 👤 Karr Willis Ford

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 23:10
CPC Classifications
B; B66; B66B; B66B23/00; B66B23/02; B66B23/024; B65; B65G; B65G23/00; B65G23/02; B65G23/20

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1632569A Cited
US756600A Cited
US1191434A Cited
FR724088A Cited
US2227971A Cited
US2627339A Cited
CH381282A Cited
GB1039010A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-09-03 1972-03-04 1972-09-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-09-03 1976-03-04 1976-09-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-09-03 1980-03-04 1980-09-03 $7700.00 Window Closed / Lapsed

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