LexDanaLexDanabeta
Inventor

Francis E. Smith

Inventor
Chagrin Falls, OH, US

Overview

3→
Patents
1984–1987
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A47Lprimary
A47LDomestic washing or cleaning67%
B24CAbrasive or related blasting with particulate material33%
PatentTitleYear
4,698,534'Quiet by-pass vacuum motor'19874,621,991'Quiet by-pass vacuum motor'19864,432,169'Glass ware etching apparatus'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to COLE NATIONAL CORP (1)· patent assignee history
1984Based in South Russell, OH, US· patent location history
1986–1987Patents assigned to AMETEK INC (2)· patent assignee history
1986–1987Based in Chagrin Falls, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMETEK INC21986–1987
COLE NATIONAL CORP11984
Locations
LocationPatentsSpan
Chagrin Falls, OH, US21986–1987
South Russell, OH, US11984