CN2823529Y - Hard alloy plate for drill bit - Google Patents
Hard alloy plate for drill bit Download PDFInfo
- Publication number
- CN2823529Y CN2823529Y CN 200620024158 CN200620024158U CN2823529Y CN 2823529 Y CN2823529 Y CN 2823529Y CN 200620024158 CN200620024158 CN 200620024158 CN 200620024158 U CN200620024158 U CN 200620024158U CN 2823529 Y CN2823529 Y CN 2823529Y
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- groove
- drill bit
- alloy sheet
- plush copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620024158 CN2823529Y (en) | 2006-04-19 | 2006-04-19 | Hard alloy plate for drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200620024158 CN2823529Y (en) | 2006-04-19 | 2006-04-19 | Hard alloy plate for drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2823529Y true CN2823529Y (en) | 2006-10-04 |
Family
ID=37032642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200620024158 Expired - Fee Related CN2823529Y (en) | 2006-04-19 | 2006-04-19 | Hard alloy plate for drill bit |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2823529Y (en) |
-
2006
- 2006-04-19 CN CN 200620024158 patent/CN2823529Y/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heibei Liulong Hard Alloy Group Co., Ltd. Assignor: Duan Licheng Contract fulfillment period: 2008.10.31 to 2014.12.31 Contract record no.: 2008130000097 Denomination of utility model: With hard alloy bit slice Granted publication date: 20061004 License type: Exclusive license Record date: 20081119 Assignee: Changsha Zhongnan Kaida Powder Metallurgy Co.,Ltd. Assignor: Duan Licheng Contract fulfillment period: 2008.9.30 to 2015.9.30 Contract record no.: 2008430000030 Denomination of utility model: With hard alloy bit slice Granted publication date: 20061004 License type: Exclusive license Record date: 20081119 |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heibei Liulong Hard Alloy Group Co., Ltd. Assignor: Duan Licheng Contract fulfillment period: 2008.10.31 to 2014.12.31 Contract record no.: 2008130000097 Denomination of utility model: Hard alloy sheet for single-chisel bit Granted publication date: 20061004 License type: Exclusive license Record date: 20081119 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.31 TO 2014.12.31; CHANGE OF CONTRACT Name of requester: HEBEI LIULONG HARD ALLOY GROUP CO.,LTD. Effective date: 20081119 Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.30 TO 2015.9.30; CHANGE OF CONTRACT Name of requester: CHANGSHA ZHONGNAN KAIDA POWDER METALLURGY CO., LTD Effective date: 20081119 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20140419 |