Patent · US Expired

Housing for ultrasonic light control or the like

USD290239S · kind S · design

12Cited by
5References
1Claims
0Family size

Inventor

Key dates

Filing dateSep 7, 1984
Grant dateJun 9, 1987
Priority date
Expiry dateJun 9, 2001

Classification

  • Technology area (CPC —)General

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