Granted Patent
Utility
Small
US 6,634,887
· Confirmation No. 4760
METHODS AND SYSTEMS FOR TUTORING USING A TUTORIAL MODEL WITH INTERACTIVE DIALOG
Patented Case
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2003-08-26 | IFEE |
Issue Fee Payment (PTO-85B) | 1 | View | |
| 2003-08-26 | LET. |
Miscellaneous Incoming Letter | 2 | View | |
| 2001-06-19 | TRNA |
Transmittal of New Application | 3 | View | |
| 2001-06-19 | SPEC |
Specification | 45 | View | |
| 2001-06-19 | CLM |
Claims | 15 | View | |
| 2001-06-19 | ABST |
Abstract | 1 | View | |
| 2001-06-19 | DRW |
Drawings-only black and white line drawings | 4 | View |
Inventors
Neil Thomas Heffernan III
Pittsburgh, PA
Kenneth R. Koedinger
Pittsburgh, PA
Attorneys & Agents of Record
Classification
USPC
434/322
Prosecution
- Examiner
- VO, HIEU T
- Art Unit
- 3747
- Customer No.
- 26285
- Docket No.
- 00437
- Confirmation No.
- 4760
Patent Term Adjustment
-36days
No related applications found.
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY TO CARNEGIE LEARNING, INC. PREVIOUSLY RECORDED ON REEL 053751 FRAME 0257. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. FILED CORRECT RECEIVING PARTY UNDER 053751/0691. PLEASE REMOVE THIS INCORRECT ASSIGNMENT.
Recorded 2020-09-16
RELEASE OF SECURITY INTEREST
Recorded 2020-09-11
RELEASE OF SECURITY INTEREST
Recorded 2020-09-11
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2001-10-30
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Quick Facts
- Patent No.
- US 6,634,887
- App. No.
- 09/884,743
- Filed
- 2001-06-19
- Granted
- 2003-10-21
- Examiner
- VO, HIEU T
- Art Unit
- 3747
- PTA
- -36 days
External Links