Border blocks for tree and shrub decoration
US5615529A · kind A · utility
30Cited by
7References
10Claims
0Family size
Inventors
Key dates
| Filing date | Mar 12, 1996 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Mar 12, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G9/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The border blocks of the invention include a plurality of hollow plastic blocks fillable through push-cap openable holes at their top with sand and employing various tongue-and-groove interlocks extending from the left and right sides thereof to join with similar adjacent blocks--whether linear or curved--and with the individual blocks also being provided with apertures at their bottom to mate with projections as part of the push-cap openable holes so as to stack one atop the other in forming several courses of block and in which the blocks forming the bottom course incorporate a tie-down arrangement for securement to the ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.