Granted Patent
Utility
US 6,575,235
· Confirmation No. 7316
SUBTERRANEAN DRAINAGE PATTERN
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2002-04-15 | TRNA |
Transmittal of New Application | 5 | View | |
| 2002-04-15 | SPEC |
Specification | 42 | View | |
| 2002-04-15 | CLM |
Claims | 2 | View | |
| 2002-04-15 | ABST |
Abstract | 1 | View | |
| 2002-04-15 | DRW |
Drawings-only black and white line drawings | 12 | View | |
| 2002-04-15 | OATH |
Oath or Declaration filed | 3 | View | |
| 2002-04-15 | LET. |
Miscellaneous Incoming Letter | 1 | View |
Inventors
Joseph A. Zupanick
Pineville, WV
Monty H. Rial
Dallas, TX
Attorneys & Agents of Record
Classification
USPC
166/50
E21B7/046
E21B43/006
E21B43/305
Prosecution
- Examiner
- KRECK, JANINE MUIR
- Art Unit
- 3673
- Customer No.
- 26231
- Docket No.
- 067083.0194
- Confirmation No.
- 7316
Publication
- Pub. No.
- US20020117297A1
- Pub. Date
- 2002-08-29
Patent Term Adjustment
-58days
RELEASE OF SECURITY INTEREST
Recorded 2014-03-03
RELEASE OF SECURITY INTEREST
Recorded 2014-03-03
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2014-02-12
from
CDX GAS, LLC
SECURITY AGREEMENT
Recorded 2006-05-10
from
CDX GAS, LLC
SECURITY AGREEMENT
Recorded 2006-05-10
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2005-12-22
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Quick Facts
- Patent No.
- US 6,575,235
- App. No.
- 10/123,556
- Filed
- 2002-04-15
- Granted
- 2003-06-10
- Pub. No.
- US20020117297A1
- Examiner
- KRECK, JANINE MUIR
- Art Unit
- 3673
- PTA
- -58 days
External Links