Patent · US Expired

Nonmetallic vent with integral screen

US4090436A · kind A · utility

19Cited by
6References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 24, 1977
Grant dateMay 23, 1978
Priority date
Expiry dateMar 24, 1997

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60H1/262
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

A nonmetallic two-part vent particularly suitable for mounting upon the roof of recreational vehicles for the venting of appliances, particularly gas refrigerators. The vent includes a base having an integral screen formed of the base material and a cover is directly attached to the base overlying the screen.

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