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US3000457A Expired / Lapsed US ⏱️ 0.0 years remaining

Pneumatically-actuated assistor for vehicular steering systems

Assignee: HAMILL MARKUS IND Inc
•
Filing: 1957-01-03
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Granted: 1961-09-19
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Expires: 1977-01-03
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Abstract

No abstract record available.

Inventors

  • 👤 Glenn T Randol

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 21:10
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/10

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2487618A Cited
US818967A Cited
US1875226A Cited
US2180430A Cited
US2356492A Cited
US2341502A Cited
US2313704A Cited
US2702529A Cited
US2748881A Cited
US2824447A Cited
US2719511A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-09-18 1965-03-20 1965-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-09-18 1969-03-20 1969-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-09-18 1973-03-20 1973-09-19 $7700.00 Window Closed / Lapsed

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