Concrete gutter and curb forming machine

• US 3,362,308 A
• Filed: 10/23/1965
• Issued: 01/09/1968
• Est. Priority Date: 10/23/1965
• Status: Expired due to Term

• Current Assignee: Archie R. Austin, Harold J. Austin
• Original Assignee: Archie R. Austin, Harold J. Austin
• Inventors: Austin, Harold J., Austin, Archie R.
• Application Number:
  US04/503,735
• Time in Patent Office: 808 Days
• US Class Current: 425/64
• CPC Class Codes: E01C 19/4886 for forming in a continuous operation kerbs, gutters, berms, safety kerbs, median barriers or like structures in situ, e.g. by slip-forming, by extrusion removable forms for kerbs, gutters or similar structures E01C19/506; making conduits in situ E02D29/10

Claims