US3300877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percentage decision multi-student teaching system
Assignee: Individual
•
Filing: 1965-01-19
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Granted: 1967-01-31
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Expires: 1985-01-19
Abstract
No abstract record available.
Inventors
- 👤 Hubert C Feder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:52
CPC Classifications
G; G09; G09B; G09B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A MULTI-STUDENT TEACHING SYSTEM COMPRISING: MEANS FOR PRESENTING MATERIAL TO A PLURALITY OF STUDENTS IN THE FORM OF SEPARATE FRAMES, EACH FRAME DIVIDED INTO DIFFERENT LEVELS OF INSTRUCTION AND EACH LEVEL HAVING ASSOCIATED THEREWITH PLURAL ANSWERS AT LEAST ONE OF WHICH IS CORRECT, MEANS INDIVIDUAL TO EACH STUDENT FOR SELECTING HIS LEVEL OF INSTRUCTION; MEANS INDIVIDUAL TO EACH STUDENT ENABLING HIM TO REGISTER HIS ANSWER, TO THE SELECTED LEVEL OF INSTRUCTION; MEANS FOR ESTABLISHING PROGRESSIVELY THE PERCENTAGE OF CORRECT RESPONSES FROM SAID ANSWER SELECTION MEANS TO THE TOTAL NUMBER OF STUDENTS AND COMPARING SAID PERCENTAGE WITH A PROGRAMMED ACCEPTABLE PERCENTAGE; AND MEANS CONTROLLED BY THE RATE AT WHICH CORRECT RESPONSES ARE REGISTERED FOR ESTABLISHING THE DISPLAY TIME FOR EACH FRAME.
Claim 2
Dependent Claim
120 words
A MULTI-STUDENT TEACHING SYSTEM COMPRISING: MEANS FOR PRESENTING MATERIAL TO A PLURALITY OF STUDENTS IN THE FORM OF SEPARATE FRAMES, EACH FRAME DIVIDED INTO DIFFERENT LEVELS OF INSTRUCTION AND EACH LEVEL HAVING ASSOCIATED THEREWITH PLURAL ANSWERS AT LEAST ONE OF WHICH IS CORRECT, MEANS INDIVIDUAL TO EACH STUDENT FOR SELECTING HIS LEVEL OF INSTRUCTION; MEANS INDIVIDUAL TO EACH STUDENT ENABLING HIM TO REGISTER HIS ANSWER, TO THE SELECTED LEVEL OF INSTRUCTION; MEANS FOR ESTABLISHING PROGRESSIVELY THE PERCENTAGE OF CORRECT RESPONSES FROM SAID ANSWER SELECTION MEANS TO THE TOTAL NUMBER OF STUDENTS AND COMPARING SAID PERCENTAGE WITH A PROGRAMMED ACCEPTABLE PERCENTAGE; AND MEANS CONTROLLED BY THE RATE AT WHICH CORRECT RESPONSES ARE REGISTERED FOR ESTABLISHING THE DISPLAY TIME FOR EACH FRAME.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |