Stamp unit protection element
US5996493A · kind A · utility
14Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41D7/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A stamp unit has a transparent film which protects a stamp surface of the stamp material at the time of transportation of the stamp unit, during storage until a user starts to produce a stamp after purchasing the stamp unit, and during production of the stamp plate. The transparent film is thermally adhered on the lower edge of the holder member and is capable of protecting the surface of the stamp material until the start of the stamp printing. The transparent film is capable of easily and economically adhering to the stamp material without adhering to a thermal adhesion jig.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.