Patent · US Expired

Control unit for an electronic air cleaner

USD269996S · kind S · design

10Cited by
4References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 23, 1981
Grant dateAug 2, 1983
Priority date
Expiry dateAug 2, 1997

Classification

  • Technology area (CPC —)General

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