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US3512134A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for performing file search in a digital computer

Assignee: Unisys Corp
•
Filing: 1967-04-03
•
Granted: 1970-05-12
•
Expires: 1987-04-03
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Abstract

No abstract record available.

Inventors

  • 👤 Roger E Packard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 22:04
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/30; G06F9/30003; G06F9/30007; G06F9/30021; G06F16/00; G06F16/90; G06F16/903; G06F16/90335; G06F16/90339; G06F7/00; G06F7/22; Y; Y10; Y10S; Y10S707/00; Y10S707/99931; Y10S707/99933

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2947976A Cited
US3214736A Cited
US3107343A Cited
US3149309A Cited
US3311887A Cited
US3339181A Cited
US3417375A Cited
US3408631A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-05-11 1973-11-10 1974-05-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-05-11 1977-11-10 1978-05-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-05-11 1981-11-10 1982-05-12 $7700.00 Window Closed / Lapsed

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