Envelopes
US5505376A · kind A · utility
Inventors
Key dates
| Filing date | Jul 9, 1993 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Jul 9, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D27/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A mailing envelope (10) has a stick down closure flap (11) extending from a fold line (12) along the top edge of a front panel (20). The closure flap (11) includes a graspable tear-out tab (19) to which is adhered a flexible line member (18) which extends across and is adhered to the envelope internally thereof. The envelope (10) may be opened by grasping the tab (19), with the line member adhered thereto, and pulling the tab (19) and the line member (18) away from the envelope to cause the line member (18) to tear through the envelope along the length of the line member. Preferably the line member (18) is secured to the flap (11) along it fold line (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.