US3395247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading machine for the blind
Assignee: PORTTER INSTR Co Inc
•
Filing: 1965-04-13
•
Granted: 1968-07-30
•
Expires: 1985-04-13
Abstract
No abstract record available.
Inventors
- 👤 Ivan O Fieldgate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:06
CPC Classifications
G; G09; G09B; G09B21/00; G09B21/001; G09B21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A READING MACHINE FOR THE BLIND COMPRISING IN COMBINATION, A LINE OF DISCRETE CHARACTER POSITIONS, MEANS AT EACH OF SAID CHARACTER POSITIONS FOR FORMING A TACTILE CHARACTER IN RESPONSE TO RECEIPT OF A CHARACTER GENERATING SIGNAL, AN INCREMENTAL INFORMATION STORAGE TAPE TRANSPORT ADAPTED TO ADVANCE AN INFORMATION STORAGE TAPE, MEANS FOR PRODUCING A BURST OF CHARACTER GENERATING SIGNALS IN RESPONSE TO A TAPE ADVANCE COMMAND SIGNAL, MEANS FOR COUPLING THE NTH CHARACTER SIGNAL OF SAID BURST TO THE NTH CHARACTER POSITION OF SAID LINE TO FORM WORDS OF SAID CHARACTERS THAT CAN BE READ BY TOUCH.
Claim 2
Dependent Claim
96 words
A READING MACHINE FOR THE BLIND COMPRISING IN COMBINATION, A LINE OF DISCRETE CHARACTER POSITIONS, MEANS AT EACH OF SAID CHARACTER POSITIONS FOR FORMING A TACTILE CHARACTER IN RESPONSE TO RECEIPT OF A CHARACTER GENERATING SIGNAL, AN INCREMENTAL INFORMATION STORAGE TAPE TRANSPORT ADAPTED TO ADVANCE AN INFORMATION STORAGE TAPE, MEANS FOR PRODUCING A BURST OF CHARACTER GENERATING SIGNALS IN RESPONSE TO A TAPE ADVANCE COMMAND SIGNAL, MEANS FOR COUPLING THE NTH CHARACTER SIGNAL OF SAID BURST TO THE NTH CHARACTER POSITION OF SAID LINE TO FORM WORDS OF SAID CHARACTERS THAT CAN BE READ BY TOUCH.
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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |