Garage door opener and wireless keypad transmitter with temporary password feature
US5872513A · kind A · utility
122Cited by
25References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00849
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A garage door opener system includes providing temporary access permission for some user or users while maintaining near permanent access permission for other users. The temporary access permission may be controlled by number of uses or a predetermined amount of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.