Method of making a mailer with tear strip on outgoing and return envelopes
US5071399A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D27/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method is provided for constructing a mailer type business form in a continuous manner so that an easy opening tear strip is provided in both the outgoing and return envelopes. This allows not only the addressee of the outgoing envelope to readily remove its contents, but allows the addressor of the outgoing envelope--when the return envelope is received thereby--to readily retrieve the contents of the return envelope. This substantially enhances the utility of the ultimate mailer product. Desirably, the tear strips are formed by a slit and perforation in the bottom sheet of each of the outgoing and return envelopes, and within the mailer the tear strips are parallel to each other. An insert is also typically provided between the top sheet of the outgoing envelope and the top sheet of the return envelope, and is pasted to outgoing envelope at the left and right.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.