Patent Application
Provisional
App. No. 60/750,457
· Confirmation No. 3271
Cutting elements having cutting edges with continuous varying radii
Provisional Application Expired
Inventors
Yuelin Shen
Houston, TX
John Youhe Zhang
Tomball, TX
Attorneys & Agents of Record
Prosecution
- Customer No.
- 23363
- Docket No.
- 56128/S1117
- Confirmation No.
- 3271
Child
Claims priority from a provisional application
→
App. 11/638,934
· US 8,499,860
Filed 2006-12-13
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 13/958,445
· US 9,145,743
Filed 2013-08-02
· Patented Case
Child
Claims priority from a provisional application
→
App. 15/720,844
· US RE48,524
Filed 2017-09-29
· Patented Case
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2021-04-28
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Quick Facts
- App. No.
- 60/750,457
- Filed
- 2005-12-14
External Links