Inventor
Walter G. Marsh
Inventor
Detroit, MI, US
Overview
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
| Assignee | Patents | Span |
|---|---|---|
| TAPCO PRODUCTS CO | 3 | 1976–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Detroit, MI, US | 2 | 1981–1988 |
| Birmingham, MI, US | 1 | 1976 |