Patent · US Expired

Helical perch bird feeder

US6213054A · kind A · utility

48Cited by
10References
17Claims
0Family size

Inventor

Key dates

Filing dateApr 11, 1997
Grant dateApr 10, 2001
Priority date—
Expiry dateApr 11, 2017

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA01K39/012
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A bird feeder that includes a container having feed-access openings and a generally helical member attached to the container to extend around it along a path such that, for each of the openings, a portion of the member is close enough and in the proper location to allow a bird perched on that portion to retrieve seed accessible through that opening.

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