Electronic key
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 1984
Grant Date -
N/A
app pub date -
Jan 11, 1982
filing date -
Jan 11, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved electronic key for use in combination with an electrical receptacle adapted to receive the key wherein switch contacts on the key are designed for making electrical contact with corresponding receptacle contacts when the key is turned in the receptacle to an 'on' position only after the other key contacts make electrical contact with the corresponding receptacle contacts. Conversely, the switch contacts are the first to break electrical contact when the key is turned past the 'on' position in either direction.
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