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US3508034A Expired / Lapsed US ⏱️ 0.0 years remaining

Time measuring device for sports

Assignee: Seiko Instruments Inc
•
Filing: 1967-06-22
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Granted: 1970-04-21
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Expires: 1987-06-22
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Abstract

Abstract 1,023,254. Timing races. DAINI SEIKOSHA KABUSHIKI KAISHA. Aug. 4, 1964 [July 17, 1963], No. 30518/64. Heading G1J. In a system for timing races an electrical start signal causes an electronic counter to begin counting regularly spaced electrical time signals, lap and/or course completion signals for each competitor cause an electronic memory to store the number of time signals counted at the moment of arrival of each completion signal and a printing device records the stores times. A clock synchronized with the time signals may be provided to display to spectators the time elapsed since the start of the race and it may be temporarily stopped at the completion of the first lap and/or of the course. The number of laps completed by each competitor may be detected and stored in the memory for printing with the stored times. The start signal may be provided by an audio, visual or mechanical device responsive to the sound or movement of the starting pistol. The time signals may be spaced by hundredths or thousandths of a second.

Inventors

  • 👤 Masatoshi Toyama
  • 👤 Shiro Sugiyama
  • 👤 Kazuo Ito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:59
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/22; G07C1/24; G04; G04F; G04F10/00; G04F10/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2396017A Cited
US2566078A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1973-04-20 1973-10-20 1974-04-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1977-04-20 1977-10-20 1978-04-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1981-04-20 1981-10-20 1982-04-21 $7700.00 Window Closed / Lapsed

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