Specialty envelope
US4186868A · kind A · utility
13Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | May 1, 1978 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | May 1, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D15/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An envelope for sending a written message with a photograph attached thereto. An adhesive is provided on one flap for attaching a photograph; the flap can then be folded so that the photograph is over the writing surface. Other flaps fold over the photograph so that the photograph is shielded in its entirety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.