Ventilated cigarettes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 25, 1982
Issued Date -
N/A
app pub date -
Dec 29, 1980
filing date -
Aug 5, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Ventilated cigarettes are made by perforating the wrapper of each filter over an area which lies within pre-formed perforations in the uniting band joining the filter to the tobacco rod. The filter wrappers may be perforated by pins on a rolling plate and fluted drum between which filter portions cut from longer filter rods are rolled to stagger the portions so that they can then be pushed into a single row.
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