Method for determining a warranty start date

Details Method for determining a warranty start date Method for determining a warranty start date

2007-09-18

2007-09-18

Weiss, John G. (Department: 3629)

Horology: time measuring systems or devices

With calendar indicator

Electro-optical

C705S001100, C705S007380, C455S466000, C455S414200, C455S418000, C455S419000, C455S420000, C455S550100

Reexamination Certificate

active

09888941

ABSTRACT:
A method for determining a warranty start date for a product has steps of determining a warranty start event and generating a warranty start date after occurrence of the warranty start event. The timestamp may be generated through a query to a time server on a network connected to the product. Preferred examples of warranty start events comprise first use by the user, and production of a specified cumulative quantity of product output. The warranty start event as well as the generated warranty start date are preferably stored on a memory internal to the product.

REFERENCES:
patent: 6519470 (2003-02-01), Rydbeck
patent: 6798719 (2004-09-01), Muta et al.
patent: 2366400 (2002-03-01), None
patent: 2000250969 (2000-09-01), None
Warranty Period Notification Device, Hiroshi Umezaki; Document No. JP 2000-250969, Pub Date Sep. 14, 2000 (translation attached herein).

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