Timepiece with calendar

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4611925
SERIAL NO

06730128

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The timepiece of the invention includes a hand for date display. This hand is driven via a calendar ring of a well-known type bearing teeth on its outer circumference. Such teeth drive intermediate gearing which in turn drives a calendar wheel fixed to the date display hand. This mechanism enables the mounting of a date displaying hand on a movement normally intended to show dates through a dial opening with minimum modifications.

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Patent Owner(s)

Patent OwnerAddress
O M E G A SARUE STAMPFLI 96 CH-2500 BIENNE

International Classification(s)

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  • 1985 Application Filing Year
  • G04B Class
  • 64 Applications Filed
  • 1 Patents Issued To-Date
  • 1.57 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19851986198719880255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Erni, Bruno Bienne, CH 5 38
Vuilleumier, Cyril Bienne, CH 16 350

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Patent Citation Ranking

  • 3 Citation Count
  • G04B Class
  • 0 % this patent is cited more than
  • 39 Age
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