Ergonomically operating automatic umbrella
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 28, 1993
Grant Date -
N/A
app pub date -
Aug 17, 1992
filing date -
Aug 17, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic umbrella includes a resetting device slidably held on a grip of the umbrella which can be grasped by a user's hand for resetting or compressing a tensioning spring provided in a central shaft of the umbrella for automatically closing the umbrella so that a resetting operation for storing an elastic energy of the tensioning spring can be operated ergonomically.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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