Patent · US Expired

Multi-month calendar

US4226443A · kind A · utility

15Cited by
3References
6Claims
0Family size

Inventor

Key dates

Filing dateJul 17, 1978
Grant dateOct 7, 1980
Priority date
Expiry dateJul 17, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB42D5/04
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

In abstract a preferred embodiment of this invention is a multi-month calendar wherein a single sight includes a plurality of months, each color coded for ready recognition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.