Patent Application
Provisional
Small
App. No. 60/357,939
· Confirmation No. 4756
Wellhead isolation tool
Provisional Application Expired
Inventors
Rex E. Duhn
Bakersfield, CA
Robert K. Meek
Bakersfield, CA
Attorneys & Agents of Record
Prosecution
- Customer No.
- 23363
- Docket No.
- 47908/CM/D190
- Confirmation No.
- 4756
Child
Claims priority from a provisional application
→
App. 10/947,778
· US 7,493,944
Filed 2004-09-23
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 13/480,410
· US 8,333,237
Filed 2012-05-24
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 10/369,070
· US 6,920,925
Filed 2003-02-19
· Patented Case
Child
Claims priority from a provisional application
→
App. 11/891,431
· US 7,416,020
Filed 2007-08-09
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 13/671,415
· US 8,863,829
Filed 2012-11-07
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 10/462,941
Filed 2003-06-17
· Abandoned -- Failure to Respond to an Office Action
Child
Claims priority from a provisional application
→
App. 11/272,289
· US 7,322,407
Filed 2005-11-09
· Patented Case
Child
Claims priority from a provisional application
→
App. 12/757,940
· US 8,272,433
Filed 2010-04-09
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 12/001,621
· US 7,520,322
Filed 2007-12-11
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child
Claims priority from a provisional application
→
App. 12/154,338
· US 7,726,393
Filed 2008-05-21
· Patented Case
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Quick Facts
- App. No.
- 60/357,939
- Filed
- 2002-02-19
External Links