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US2641785A Expired / Lapsed US ⏱️ 0.0 years remaining

Marine transfer ramp

Assignee: Standard Oil Development Co
•
Filing: 1948-06-26
•
Granted: 1953-06-16
•
Expires: 1968-06-26
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Abstract

No abstract record available.

Inventors

  • 👤 William A Pitts
  • 👤 Campbell M Carothers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 09:04
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/24; B; B63; B63B; B63B27/00; B63B27/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US290348A Cited
US1034061A Cited
US1034760A Cited
US1091835A Cited
US1276666A Cited
US1329924A Cited
US2478177A Cited
US2473126A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-06-15 1956-12-15 1957-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-06-15 1960-12-15 1961-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-06-15 1964-12-15 1965-06-16 $7700.00 Window Closed / Lapsed

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