Granted Patent
Utility
US 6,616,721
· Confirmation No. 6876
CYCLONE DUST COLLECTOR FOR PREVENTING BACKFLOW
Inventor:
Jang-keun Oh
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-06-30 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2002-02-20 | TRNA |
Transmittal of New Application | 2 | View | |
| 2002-02-20 | SPEC |
Specification | 12 | View | |
| 2002-02-20 | CLM |
Claims | 2 | View | |
| 2002-02-20 | ABST |
Abstract | 1 | View | |
| 2002-02-20 | DRW |
Drawings-only black and white line drawings | 4 | View | |
| 2002-02-20 | OATH |
Oath or Declaration filed | 4 | View |
Inventors
Jang-keun Oh
Gwangju-city, KOREA, REPUBLIC OF
Attorneys & Agents of Record
Classification
USPC
55/426
A47L9/16
A47L9/1683
Y10S55/03
Prosecution
- Examiner
- HOPKINS, ROBERT A
- Art Unit
- 1724
- Customer No.
- 26530
- Docket No.
- CU-2786 VE
- Confirmation No.
- 6876
Foreign Priority
2001-57086
·
2001-09-17
·
REPUBLIC OF KOREA
Publication
- Pub. No.
- US20030051452A1
- Pub. Date
- 2003-03-20
Patent Term Adjustment
0days
No related applications found.
RELEASE OF SECURITY INTEREST
Recorded 2015-09-15
SECURITY INTEREST
Recorded 2014-03-17
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2005-08-24
from
OH, JANG-KEUN
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-02-20
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Quick Facts
- Patent No.
- US 6,616,721
- App. No.
- 10/079,225
- Filed
- 2002-02-20
- Granted
- 2003-09-09
- Pub. No.
- US20030051452A1
- Examiner
- HOPKINS, ROBERT A
- Art Unit
- 1724
- PTA
- 0 days
External Links