Patent US3299254A successfully refreshed from Google Patents.
US3299254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test scoring machine
Assignee: RTX Corp
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Filing: 1961-08-21
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Granted: 1967-01-17
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Willis E Dobbins
- 👤 Frederick C Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:03
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0032
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A TEST SCORING MACHINE INCLUDING IN COMBINATION A TEST PAPER HAVING PROVISION FOR A TEST KEY, MEANS FOR STORING THE TEST KEY AND RESOLVED REPRESENTATIONS OF CANDIDATE ANSWERS, A DECODER, MEANS FOR PRESENTING THE STORED TEST KEY TO THE DECODER, A SIGNAL CHANNEL, MEANS INCLUDING ROTATING INDEXING MEANS FOR SERIALLY PRESENTING TO THE SIGNAL CHANNEL PULSES IN ACCORDANCE WITH THE STORED REPRESENTATIONS OF RESOLVED CANDIDATE ANSWERS, MEANS RESPONSIVE TO THE DECODER AND INCLUDING STORAGE MEANS ROTATING IN UNISON WITH THE INDEXING MEANS FOR PROVIDING ONE OF A PLURALITY OF SEQUENCES OF CORRECT ANSWER PULSES SYNCHRONOUSLY WITH THE PRESENTATION OF RESOLVED CANDIDATE ANSWER PULSES, MEANS FOR SERIALLY PRESENTING TO THE SIGNAL CHANNEL FURTHER PULSES INDICATING ANSWERS WHICH ARE TO BE SCORED WRONG, AN ACCUMULATOR FOR WRONG ANSWERS, AND MEANS RESPONSIVE TO A SIGNAL CHANNEL PULSE FOR ACTUATING THE WRONG ANSWER ACCUMULATOR IN THE ABSENCE OF A CONCURRENT CORRECT ANSWER PULSE.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |