Tamper-resistant envelope
US6048098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-resistant envelope is disclosed which includes first and second panels joined to one another to define opposed side edges and a bottom edge. The envelope has an opening opposite the bottom edge for providing access thereunto. A first adhesive seal is disposed on one of the first and second panels adjacent the opening for sealingly adhering to the other of the two panels. The first adhesive seal is formed of an adhesive material having adherent properties which are resistant to release at temperatures substantially below room temperature. A second adhesive seal is disposed on one of the first and second panels for sealingly adhering to the other of the two panels. The second adhesive seal is formed of an adhesive material having adherent properties which are different from those of the adhesive material from which the first adhesive seal is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.