Initial rate override circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 29, 1980
Grant Date -
N/A
app pub date -
Aug 2, 1978
filing date -
Aug 2, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit which overrides the initial rate circuit included in a coin telephone, to allow the central office to perform coin collect and refund operations independent of whether or not the initial rate has been deposited. This circuit operates in response to coin battery applied by the central office to operate a rate relay which connects the included coin relay to the central office.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully