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US2768699A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydraulic power steering with by-pass valve

Assignee: Vickers Inc
•
Filing: 1952-12-08
•
Granted: 1956-10-30
•
Expires: 1972-12-08
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Abstract

No abstract record available.

Inventors

  • 👤 Duncan B Gardiner
  • 👤 Henry C Parsons
  • 👤 Theodore Van Meter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:00
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2030902A Cited
US2022698A Cited
US2069540A Cited
US2081054A Cited
US2432721A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-10-30 1960-04-30 1960-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-10-30 1964-04-30 1964-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-10-30 1968-04-30 1968-10-30 $7700.00 Window Closed / Lapsed

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