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Inventor

Richard A. Smirl

Inventor
Chicago, IL, US

Overview

2→
Patents
1979–1981
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

H03Jprimary
H03JTuning resonant circuits100%
PatentTitleYear
4,270,218'Continuous tune all-channel selector'19814,173,737'Limited position, non-volatile memory tuning system'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1981Patents assigned to ZENITH RADIO CORP (2)· patent assignee history
1979–1981Based in Chicago, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ZENITH RADIO CORP21979–1981
Locations
LocationPatentsSpan
Chicago, Illinois, US21979–1981