Patent · US Active

Manhole urethane mold and method of producing the same

US12208546B2 · kind B2 · utility

0Cited by
1References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 1, 2020
Grant dateJan 28, 2025
Priority date—
Expiry dateFeb 4, 2042

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29L2031/757
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

Process and mold embodiments are described herein for creating polyurethane molds that allow for the production of manhole bases.

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