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Inventor

Laurence J. Retallack

Inventor
London, CA

Overview

3→
Patents
1985–1988
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H04Mprimary
H04MTelephonic communication60%
H01HElectric switches20%
H05KPrinted circuits20%
PatentTitleYear
4,731,833'Low profile circuit board mounted telephone jack'19884,647,728'Programming switch assembly for communication terminals'19874,493,949'Parallel operation of telephone equipment on a digital loop'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1988Patents assigned to NORTHERN TELECOM LTD (3)· patent assignee history
1985Based in Ottawa, CA· patent location history
1987–1988Based in London, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NORTHERN TELECOM LTD31985–1988
Locations
LocationPatentsSpan
London, CA21987–1988
Ottawa, CA11985