CA1216931A - Systeme d'information par television - Google Patents

Systeme d'information par television

Info

Publication number
CA1216931A
CA1216931A CA000501597A CA501597A CA1216931A CA 1216931 A CA1216931 A CA 1216931A CA 000501597 A CA000501597 A CA 000501597A CA 501597 A CA501597 A CA 501597A CA 1216931 A CA1216931 A CA 1216931A
Authority
CA
Canada
Prior art keywords
television
information
subscriber
data
channels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000501597A
Other languages
English (en)
Inventor
Bruce E. Lovett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/363,959 external-priority patent/US4450477A/en
Application filed by Individual filed Critical Individual
Priority to CA000501597A priority Critical patent/CA1216931A/fr
Application granted granted Critical
Publication of CA1216931A publication Critical patent/CA1216931A/fr
Expired legal-status Critical Current

Links

CA000501597A 1982-03-31 1986-02-11 Systeme d'information par television Expired CA1216931A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000501597A CA1216931A (fr) 1982-03-31 1986-02-11 Systeme d'information par television

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/363,959 US4450477A (en) 1982-03-31 1982-03-31 Television information system
US363,959 1982-03-31
CA000424720A CA1203890A (fr) 1982-03-31 1983-03-29 Systeme d'information de television
CA000501597A CA1216931A (fr) 1982-03-31 1986-02-11 Systeme d'information par television

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000424720A Division CA1203890A (fr) 1982-03-31 1983-03-29 Systeme d'information de television

Publications (1)

Publication Number Publication Date
CA1216931A true CA1216931A (fr) 1987-01-20

Family

ID=25669986

Family Applications (2)

Application Number Title Priority Date Filing Date
CA000501597A Expired CA1216931A (fr) 1982-03-31 1986-02-11 Systeme d'information par television
CA000501622A Expired CA1216932A (fr) 1982-03-31 1986-02-11 Systeme d'information par television

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA000501622A Expired CA1216932A (fr) 1982-03-31 1986-02-11 Systeme d'information par television

Country Status (1)

Country Link
CA (2) CA1216931A (fr)

Also Published As

Publication number Publication date
CA1216932A (fr) 1987-01-20

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Legal Events

Date Code Title Description
MKEX Expiry
MKEX Expiry

Effective date: 20040120