Schallwandler
Swiss patent · CH676770 · Deleted
Register entry
- Publication number
- CH676770
- Application number
- CH001810/1988
- Kind
- Swiss patent
- Status
- Deleted
- Specification
- Granted
- Filed
- Sep 4, 1987
- Published
- Feb 28, 1991
- Granted
- Feb 28, 1991
- Deleted
- Sep 30, 2002
- Reason
- Annual fee unpaid
- IPC classes
- H04R 19/01 (2006.01)
- Priority
- US A907498 15.09.1986
- PCT application
- PCT/US1987/002259 04.09.1987
- PCT publication
- WO1988/002208 24.03.1988
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- May 15, 2003
Deleted, fee unpaid
Published in +pat+ No 9 in 2003
- Jan 31, 2000
Transferred
- Owner
- Knowles Electronics, Inc., 1151 Maplewood Drive, Itasca/IL, USA → Knowles Electronics, LLC, 1151 Maplewood Drive, Itasca/IL 60143, USA
Published in PIDTJ No 2 in 2000
- Feb 28, 1991
Granted
Published in PIDTJ No 4 in 1991
Parties
Inventor
Madaffari, Peter L.
Elgin/IL, US
Carlson, Elmer V.
Prospect Heights/IL, 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.