DIFFERENTIELLER VERSTÄRKER
European patent · EP0449823 · Deleted
Register entry
- Publication number
- EP0449823
- Application number
- EP89905523
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Feb 23, 1989
- Published
- Oct 9, 1991
- Granted
- Nov 5, 1997
- Deleted
- Feb 28, 2001
- Reason
- Annual fee unpaid
- IPC classes
- H03F 3/45 (2006.01)
- Priority
- US 287394 20.12.1988
- PCT application
- PCT/US1989/000741 23.02.1989
- PCT publication
- WO1990/007231 28.06.1990
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Sep 28, 2001
Deleted, fee unpaid
Published in PIDTJ No 18 in 2001
- Jan 30, 1998
Agent entered
- Representative
- Patentanwaltsbüro Eder AG, Lindenhofstrasse 40, 4052 Basel
Published in PIDTJ No 2 in 1998
- Nov 14, 1997
Granted
Published in PIDTJ No 21 in 1997
Parties
Inventor
WALDHAUER, Fred, Donald
La Honda,San Mateo CA 94020, US
BAEZ, Carlos, Alberto
San Mateo, CA 94402, US
The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.