Perpetual calendar wheel chart

Details Perpetual calendar wheel chart Perpetual calendar wheel chart

2006-11-28

2006-11-28

Davis, Cassandra (Department: 3611)

Card, picture, or sign exhibiting

Calendars

Rotatable

C040S495000, C283S002000

Reexamination Certificate

active

07140132

ABSTRACT:
A perpetual calendar wheel chart for determining the calendar for a particular year past, present, or future is comprised of two wheel members adapted to rotate about a common center. The first wheel member has in its center indicia representing the tens and ones digits of the year and has around its circumference indicia representing the day of the month. The second wheel member atop the first wheel member is generally transparent and has in its center indicia representing the hundreds and thousands digits of the year for aligning with the ones and tens digits of the year indicia of the first member and has around its circumference twelve transparent windows representing the months of the year that align with the day of the month indicia of the first member to indicate the calendar for a particular year.

REFERENCES:
patent: 658309 (1900-09-01), Zachrisson
patent: 1521899 (1925-01-01), May

Affiliated with

Also associated with

Rating

Perpetual calendar wheel chart does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Perpetual calendar wheel chart, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perpetual calendar wheel chart will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3656482