Mail arrival alert for mailbox
US5076337A · kind A · utility
15Cited by
5References
5Claims
0Family size
Inventor
Key dates
| Filing date | May 11, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | May 11, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G2029/12105
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A simplified attachment for a mailbox which alerts the mailbox addressee that mail has been delivered. The attachment includes a signal flag mounted on a spring activated spool rotatably secured within a housing affixed to the side of the mailbox. When the mailbox door is closed, the upper end of the signal flag is held under tension in a horizontal position by a keeper mounted on the door of the mailbox. When the mailbox door is opened, the signal flag is released from its horizontal position and, powered by the spring, rises to a vertical position above the mailbox to alert the addressee that the mail has arrived.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.