Granted Patent
Utility
US 6,752,222
· Confirmation No. 2114
DOWNHOLE PERCUSSION DRILLS
Inventors:
Hirokazu Karasawa, Tetsuji Ohno, Akinori Ota, Tsutomu Kaneko, Naoto Yamada, Tetsuomi Miyamoto
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2004-05-11 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2002-12-10 | TRNA |
Transmittal of New Application | 1 | View | |
| 2002-12-10 | ADS |
Application Data Sheet | 9 | View | |
| 2002-12-10 | SPEC |
Specification | 13 | View | |
| 2002-12-10 | CLM |
Claims | 1 | View | |
| 2002-12-10 | ABST |
Abstract | 1 | View | |
| 2002-12-10 | DRW |
Drawings-only black and white line drawings | 5 | View | |
| 2002-12-10 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
Hirokazu Karasawa
Tsukuba-shi, JAPAN
Tetsuji Ohno
Tsukuba-shi, JAPAN
Akinori Ota
Chiyoda-ku, JAPAN
Tsutomu Kaneko
Yoshii-machi, JAPAN
Naoto Yamada
Isumi-gun, JAPAN
Tetsuomi Miyamoto
Isumi-gun, JAPAN
Attorneys & Agents of Record
Classification
USPC
173/78
E21B4/003
E21B4/14
Prosecution
- Examiner
- CHUKWURAH, NATHANIEL C
- Art Unit
- 3721
- Customer No.
- 23911
- Docket No.
- 100088.51890US
- Confirmation No.
- 2114
Foreign Priority
2001-382,274
·
2001-12-14
·
JAPAN
Publication
- Pub. No.
- US20030111240A1
- Pub. Date
- 2003-06-19
Patent Term Adjustment
0days
No related applications found.
SECURITY INTEREST
Recorded 2020-07-21
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY,
FURUKAWA CO., LTD.,
K. MAIKAI CO., LTD.
from
KANEKO, TSUTONMI,
KARASAWA, KIROKAZU,
MIYAMOTO, TESUOMI,
OHNO, TETSUJI,
OTA, AKINORI,
YAMADA, NAOTO
CORRECTIVE ASSIGNMENT TO CORRECT THE SECOND ASSIGNEE'S NAME ON AN ASSIGNMENT DOCUMENT PREVIOUSLY RECORDED AT REEL 001356, FRAME 0926.
Recorded 2004-12-22
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY,
FURAKAWA CO., LTD.,
K. MAIKAI CO., LTD.
from
KANEKO, TSUTOMU,
KARASAWA, HIROKAZU,
MIYAMOTO, TESUOMI,
OHNO, TETSUJI,
OTA, AKINORI,
YAMADA, NAOTO
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2002-12-10
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Quick Facts
- Patent No.
- US 6,752,222
- App. No.
- 10/314,944
- Filed
- 2002-12-10
- Granted
- 2004-06-22
- Pub. No.
- US20030111240A1
- Examiner
- CHUKWURAH, NATHANIEL C
- Art Unit
- 3721
- PTA
- 0 days
External Links