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Inventor

Henry J. Cvetko

Inventor
Conneaut, OH, US

Overview

4→
Patents
1977–1980
Patent span
LOC
Primary field

Patents· 4 as inventor

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

LOCD1primary
LOCD150%
G11BInformation storage based on relative movement between record carrier and transducer25%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers25%
PatentTitleYear
D0257346'Conference microphone'1980D0250645'Hand microphone'19784,065,648'Microphone screen'19774,065,134'Needle assemblies for phonograph pickup cartridges'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to ASTATIC CORP (2)· patent assignee history
1977–1980Based in Conneaut, OH, US· patent location history
1978–1980Patents assigned to THE ASTATIC CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ASTATIC CORP21977
THE ASTATIC CORP21978–1980
Locations
LocationPatentsSpan
Conneaut, OH, US41977–1980