Granted Patent
Utility
US 6,622,930
· Confirmation No. 5554
FREEZE PROTECTION FOR HOT WATER SYSTEMS
Inventors
Karsten Andreas Laing
La Jolla, CA
Johannes Nikolaus Laing
La Jolla, CA
Classification
USPC
237/80
E03B7/12
Y10T137/1189
F16L53/35
Prosecution
- Examiner
- BOLES, DEREK
- Art Unit
- 3749
- Confirmation No.
- 5554
Publication
- Pub. No.
- US20020113134A1
- Pub. Date
- 2002-08-22
Patent Term Adjustment
0days
No related applications found.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2009-07-08
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Quick Facts
- Patent No.
- US 6,622,930
- App. No.
- 10/054,457
- Filed
- 2002-01-24
- Granted
- 2003-09-23
- Pub. No.
- US20020113134A1
- Examiner
- BOLES, DEREK
- Art Unit
- 3749
- PTA
- 0 days
External Links