Releasably attachable shades
US6640867B1 · kind B1 · utility
29Cited by
23References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Jul 31, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/266
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shade for covering and uncovering an opening. The shade is attachable to drawstrings which raise and lower or otherwise move the end of the shade to obscure/reveal more or less of the opening, as desired. The shade is attachable to the drawstrings through attachments which comprise slots, etc. The attachments do not require threading of the drawstrings through holes in the shade. The shades are conveniently removable from the drawstrings and optionally disposable so that different shades may be coordinated with room colors, seasonal events, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.