Method and apparatus for forming a trench
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 1991
Issued Date -
N/A
app pub date -
Jul 7, 1989
filing date -
Mar 17, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for forming a trench having a pair of frame members, connecting rods disposed between the frame members to maintain the frame members in a fixed position relative to each other, anchoring means attached to the frame members for positioning the frame members relative to the ground and a form removably held in a fixed position between the frame members having an upper surface and a shaped lower surface, the shaped lower surface providing means for molding a moldable trench composition into the shape.
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