Representing utensil
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 1990
Issued Date -
N/A
app pub date -
Aug 16, 1988
filing date -
Aug 7, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A representing utensil for use in making an invisibly depicted matter visible again which houses a coloring assistant in its own container is disclosed, wherein the coloring assistant is able to make a colorlessly depicted matter develop color and, after its coloring, do the short-time fading at which time the color is losen of itself in a relatively short time by acting on the depicted matter with the aid of a coloring agent, and further is able to make the depicted matter do repeat the recoloring and the short-time fading each time when the coloring assistant acts on the depicted matter a plural number of times.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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