Granted Patent
Utility
Small
US 6,577,738
· Confirmation No. 9918
PARAMETRIC VIRTUAL SPEAKER AND SURROUND-SOUND SYSTEM
Inventors
Elwood G. Norris
Poway, CA
James J. Croft III
Poway, CA
Classification
USPC
381/77
H04S1/002
G10H1/0091
G10H2210/301
G10K15/02
H04B11/00
H04R5/02
H04R2217/03
H04S3/00
H04S3/002
Prosecution
- Examiner
- HARVEY, MINSUN OH
- Art Unit
- 2644
- Docket No.
- T3941.CIP2
- Confirmation No.
- 9918
Publication
- Pub. No.
- US20010055397A1
- Pub. Date
- 2001-12-27
Patent Term Adjustment
-99days
Parent
is a Continuation in-part of
→
App. 08/684,311
· US 5,889,870
Filed 1996-07-17
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent
is a Continuation in-part of
→
App. 09/159,443
· US 6,229,899
Filed 1998-09-24
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
is a Continuation in-part of
→
App. 10/458,498
Filed 2003-06-09
· Abandoned -- Failure to Respond to an Office Action
Child
PCT
is a Continuation of
→
PCT/US2002/014486
Filed 2002-05-07
· PCT - IPER (International Preliminary Examination Report) 409-416 Mailed
Child
is a Continuation in-part of
→
App. 10/293,203
Filed 2002-11-12
· Abandoned -- Failure to Respond to an Office Action
RELEASE OF SECURITY INTEREST
Recorded 2025-08-14
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS
Recorded 2018-12-19
TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS
Recorded 2018-12-19
SECURITY INTEREST
Recorded 2018-03-29
SECURITY INTEREST
Recorded 2015-07-27
MEMORANDUM AND NOTICE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2014-04-04
TERMINATION AND RELEASE OF IP SECURITY AGREEMENT
Recorded 2014-04-04
SECURITY INTEREST IN U.S. PATENTS AND TRADEMARKS
Recorded 2014-01-15
from
LRAD CORPORATION
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2010-12-07
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-07-27
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Quick Facts
- Patent No.
- US 6,577,738
- App. No.
- 09/850,523
- Filed
- 2001-05-07
- Granted
- 2003-06-10
- Pub. No.
- US20010055397A1
- Examiner
- HARVEY, MINSUN OH
- Art Unit
- 2644
- PTA
- -99 days
External Links