Granted Patent
Utility
PCT National Stage
US 6,722,443
· Confirmation No. 3881
CONNECTOR FOR EXPANDABLE WELL SCREEN
Inventor:
Paul David Metcalfe
Patented Case
View Patent ↗
Inventors
Paul David Metcalfe
Scotland, GBN
Attorneys & Agents of Record
Classification
USPC
166/384
E21B43/106
Y10T403/4924
Y10T403/4933
E21B43/082
E21B43/086
E21B43/108
Prosecution
- Examiner
- GAY, JENNIFER HAWKINS
- Art Unit
- 3672
- Docket No.
- MRKS/0027
- Confirmation No.
- 3881
Foreign Priority
9817246.3
·
1998-08-08
·
UNITED KINGDOM
Patent Term Adjustment
0days
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2022-02-14
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2017-02-01
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2005-06-02
from
METCALFE, DAVID PAUL
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-05-17
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
- Patent No.
- US 6,722,443
- App. No.
- 09/762,410
- Filed
- 2001-05-17
- Granted
- 2004-04-20
- Examiner
- GAY, JENNIFER HAWKINS
- Art Unit
- 3672
- PTA
- 0 days
External Links