Patent · US Expired

Window frame and method of assembly thereof

US4316352A · kind A · utility

7Cited by
16References
1Claims
0Family size

Inventors

Key dates

Filing dateFeb 25, 1980
Grant dateFeb 23, 1982
Priority date—
Expiry dateFeb 25, 2000

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04C2/384
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

Frame comprised of I-beam verticals linked by spaced horizontals, fillers serving to separate the horizontals. Assembly involves inserting the horizontals within facing I-beam channels and separating said horizontals by fillers snapped into the I-beam channels.

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