US3284929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test grading machine
Assignee: AUTOMATA CORP
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Filing: 1966-04-06
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Granted: 1966-11-15
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Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Leo L Azure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:23
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
AN APPARATUS FOR GRADING ANSWERS TO PROBLEMS OF THE MULTIPLE CHOICE TYPE, WHEREIN THE ANSWER TO EACH PROBLEM IS INDICATED ON A TEST SHEET HAVING ANSWER INDICATION AREAS FOR EACH PROBLEM, THE NUMBER OF INDICATION AREAS FOR EACH PROBLEM CORRESPONDING TO THE NUMBER OF ANSWER CHOICES FOR THE PROBLEM, SAID APPARATUS COMPRISING IN COMBINATION: STORAGE MEANS FOR SORTING THE CORRECT ANSWERS TO THE PROBLEMS,
Claim 2
Independent Claim
64 words
AN APPARATUS FOR GRADING ANSWERS TO PROBLEMS OF THE MULTIPLE CHOICE TYPE, WHEREIN THE ANSWER TO EACH PROBLEM IS INDICATED ON A TEST SHEET HAVING ANSWER INDICATION AREAS FOR EACH PROBLEM, THE NUMBER OF INDICATION AREAS FOR EACH PROBLEM CORRESPONDING TO THE NUMBER OF ANSWER CHOICES FOR THE PROBLEM, SAID APPARATUS COMPRISING IN COMBINATION: STORAGE MEANS FOR SORTING THE CORRECT ANSWERS TO THE PROBLEMS,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |