Translucent plant cover of foldable construction
US4903431A · kind A · utility
32Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1986 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Dec 8, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G13/262
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for protecting growing plants constructed from corrugated plastic and folded in the form of a straight or tapered hexagonal column having two hinged lid panels which may be opened to provide ventilation or closed to provide protection for the plant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.