Patent · US Expired

Housing for an ultrasonic wall switch

USD339108S · kind S · design

11Cited by
3References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 15, 1991
Grant dateSep 7, 1993
Priority date
Expiry dateSep 7, 2007

Classification

  • Technology area (CPC —)General

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