Inventor

Walter G. Marsh

Inventor
Detroit, MI, US

Overview

3→
Patents
1976–1988
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B21Dprimary
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material33%
Y10TTechnical subjects covered by former us classification33%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling17%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables17%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to TAPCO PRODUCTS CO (3)· patent assignee history
1976Based in Birmingham, MI, US· patent location history
1981–1988Based in Detroit, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TAPCO PRODUCTS CO31976–1988
Locations
LocationPatentsSpan
Detroit, MI, US21981–1988
Birmingham, MI, US11976