Transparency storage and display apparatus
US4203659A · kind A · utility
7Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1978 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | Jun 12, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S353/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus designed for the purpose of viewing transparencies on an overhead projector is disclosed. The apparatus incorporates a frame and the transparencies are retained by a portion of the frame defining a mounting member. Substantially all of the weight of the frame is concentrated in the mounting member and a member in opposed, spaced relationship to the mounting member. Tabs extending from the mounting member into the area circumscribed by the frame, in which area the transparencies are positioned for storage and display, serve to retain the transparencies in relative alignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.