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Class Information
Number: 40/118
Name: Card, picture, or sign exhibiting > Calendars > Endless
Description: Calendars comprising one or more endless webs bearing the numbers of the days of the month, the numbers of the years, and the names of days of the week, or the names of the months of the year and capable of being shifted to properly designate the dates of any particular week or month.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7481012 |
Perpetual calendar system and method of use thereof |
Jan. 27, 2009 |
| 7004505 |
Calendar |
Feb. 28, 2006 |
| 6877262 |
Perpetual calendar |
Apr. 12, 2005 |
| 6631573 |
Calendar planning system |
Oct. 14, 2003 |
| 5657561 |
Multi-year calendar device |
Aug. 19, 1997 |
| 5560127 |
Perpetual calendar |
Oct. 1, 1996 |
| 5257940 |
Child's educational calendar |
Nov. 2, 1993 |
| 4381614 |
Calendar |
May. 3, 1983 |
| 4258491 |
Location indicating device |
Mar. 31, 1981 |
| 4216596 |
Perpetual calendar |
Aug. 12, 1980 |
| 4187629 |
Perpetual and multi-year calendars |
Feb. 12, 1980 |
| 4028826 |
Perpetual memory bank calendar |
Jun. 14, 1977 |
| 4022015 |
Time indicating device |
May. 10, 1977 |
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