Mail-call signal device
US4708286A · kind A · utility
9Cited by
5References
9Claims
0Family size
Inventor
Key dates
| Filing date | Dec 15, 1986 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G2029/12105
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mail-call signal device secured to the exterior of a typical rural or curbside mailbox door to indicate the presence of mail. When the mail carrier opens the mailbox door the face plate and signal plate rotate downward permitting the bright orange signal plate to be thrust outward and downward by spring means to a fully extended position visible from all directions. The signal device is reset with one finger applying pressure to the bottom of the signal plate in the upward position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.