Granted Patent
Utility
US 6,719,492
· Confirmation No. 9586
TOP ARCH OVERFILLED SYSTEM
Inventor:
Werner Heierli
Patented Case
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-11-24 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-11-24 | IDS |
Information Disclosure Statement (IDS) Form (SB08) | 5 | View | |
| 2002-04-25 | TRNA |
Transmittal of New Application | 3 | View | |
| 2002-04-25 | DRW |
Drawings-only black and white line drawings | 7 | View | |
| 2002-03-22 | TRNA |
Transmittal of New Application | 3 | View | |
| 2002-03-22 | SPEC |
Specification | 25 | View | |
| 2002-03-22 | CLM |
Claims | 10 | View | |
| 2002-03-22 | ABST |
Abstract | 1 | View | |
| 2002-03-22 | DRW |
Drawings-only black and white line drawings | 7 | View | |
| 2002-03-22 | OATH |
Oath or Declaration filed | 3 | View |
Inventors
Werner Heierli
Zurich, SWITZERLAND
Attorneys & Agents of Record
Classification
USPC
52/294
E02D29/05
Prosecution
- Examiner
- NGUYEN, CHI Q
- Art Unit
- 3635
- Confirmation No.
- 9586
Patent Term Adjustment
-26days
SECURITY INTEREST
Recorded 2016-12-08
RELEASE OF SECURITY INTEREST
Recorded 2016-12-02
RELEASE OF SECURITY INTEREST
Recorded 2016-12-02
CONTECH ENGINEERED SOLUTIONS LLC (F/K/A CONTECH CONSTRUCTION PRODUCTS INC.),
KEYSTONE RETAINING WALL SYSTEMS LLC (F/K/A KEYSTONE RETAINING WALL SYSTEMS INC.),
CONTECH TRUCKING & LOGISTICS, LLC
RELEASE OF SECURITY INTEREST
Recorded 2013-08-07
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS
Recorded 2013-06-18
CERTIFICATE OF CONVERSION
Recorded 2012-02-03
from
ALLIANCE CONSTRUCTION PRODUCTS INC.,
ARMORTEC, LLC,
CDS TECHNOLOGIES, INC.,
CONTECH BRIDGE SOLUTIONS INC.,
CONTECH CONSTRUCTION PRODUCTS, INC.,
CONTECH EARCH STABILIZATION SOLUTIONS INC.,
CONTECH STORMWATER SOLUTIONS INC.,
CONTECH TECHNOLOGIES, LLC,
CONTECH TRUCKING & LOGISTICS, LLC,
KEYSTONE RETAINING WALL SYSTEMS, INC.,
SAFETY PRECAST, INC.,
SUPERIOR DRAINAGE, LLC,
THOMPSON CULVERT COMPANY,
WEST TEXAS CULVERTS, INC.
SECURITY AGREEMENT
Recorded 2010-09-22
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2003-06-12
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Quick Facts
- Patent No.
- US 6,719,492
- App. No.
- 10/102,921
- Filed
- 2002-03-22
- Granted
- 2004-04-13
- Examiner
- NGUYEN, CHI Q
- Art Unit
- 3635
- PTA
- -26 days
External Links