Granted Patent
Utility
Small
US 6,695,522
· Confirmation No. 7471
LOW TO MEDIUM PRESSURE HIGH TEMPERATURE ALL-CERAMIC AIR TO AIR INDIRECT HEAT EXCHANGERS WITH NOVEL BALL JOINTS AND ASSEMBLIES
Inventor:
Robert G. Graham
Patented Case
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-12-30 | IFEE |
Issue Fee Payment (PTO-85B) | 3 | View | |
| 2001-03-22 | TRNA |
Transmittal of New Application | 3 | View | |
| 2001-03-22 | A.PE |
Preliminary Amendment | 2 | View | |
| 2001-03-22 | SPEC |
Specification | 29 | View | |
| 2001-03-22 | CLM |
Claims | 9 | View | |
| 2001-03-22 | ABST |
Abstract | 1 | View | |
| 2001-03-22 | DRW |
Drawings-only black and white line drawings | 5 | View | |
| 2001-03-22 | OATH |
Oath or Declaration filed | 2 | View |
Inventors
Robert G. Graham
Presque Isle, MI
Classification
USPC
403/135
Prosecution
- Examiner
- COTTINGHAM, JOHN R
- Art Unit
- 3679
- Docket No.
- MAC - 192
- Confirmation No.
- 7471
Patent Term Adjustment
-375days
Parent
is a Division of
→
App. 09/385,602
· US 6,206,603
Filed 1999-08-03
· Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent
is a Division of
→
App. 09/221,792
· US 5,979,543
Filed 1997-12-28
· Patented Case
Parent
is a Continuation in-part of
→
App. 08/548,575
Filed 1995-10-26
· Abandoned -- After Examiner's Answer or Board of Appeals Decision
from
VC ENERGY, LLC
RELEASE OF SECURITY INTEREST
Recorded 2015-02-23
CORRECTIVE ASSIGNMENT TO CORRECT THE LIST OF PATENT NUMBERS. PATENT NUMBER 2,535,365 SHOULD NOT BE INCLUDED PREVIOUSLY RECORDED ON REEL 026172 FRAME 0672. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY AGREEMENT.
Recorded 2011-04-26
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2009-12-16
from
GRAHAM, ROBERT G.
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2009-08-03
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Quick Facts
- Patent No.
- US 6,695,522
- App. No.
- 09/815,220
- Filed
- 2001-03-22
- Granted
- 2004-02-24
- Examiner
- COTTINGHAM, JOHN R
- Art Unit
- 3679
- PTA
- -375 days
External Links