Survey data collecting system
US4405157A · kind A · utility
18Cited by
2References
4Claims
0Family size
Inventor
Key dates
| Filing date | Mar 3, 1982 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Mar 3, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D15/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A survey data collecting system includes a booklet having front and back covers and a plurality of intermediate pages. The back cover is perforated to form a negotiable check, the face of which is on the outer surface of the back cover. The inner surface of the check has several columns of spaces thereon for indicating answers to questions which are written on the intermediate leaves and on the remaining portion of the back cover. The intermediate leaves decrease in width so that each succeeding leaf covers one less column of spaces than the preceding one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.