Balloon shade construction
US4899796A · kind A · utility
7Cited by
16References
12Claims
0Family size
Inventors
Key dates
| Filing date | Sep 24, 1984 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Sep 24, 2004 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2622
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A balloon-type shade utilizes bands of low-friction material, attached to a flap on the shade, for guiding the drawstrings at their points of directional change from vertical to horizontal. This permits the shade to be prestrung, independently of any rigid mounting rod, and thereby enables shipment in a flat, folded condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.