Patent · US Expired

Glass fiber-reinforced cement plates

US4411723A · kind A · utility

24Cited by
6References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 10, 1981
Grant dateOct 25, 1983
Priority date
Expiry dateDec 10, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T442/488
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

This glass fiber-reinforced cement plate is comprised of both outside layers and an intermediate layer interposed therebetween, the former each comprising a glass fiber chopped strand-containing cement layer, the latter comprising a regulated set cement layer.

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