US3105310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tachistoscopic device
Assignee: READING LAB Inc
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Filing: 1961-10-24
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Granted: 1963-10-01
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 William S Schaill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:34
CPC Classifications
G; G09; G09B; G09B17/00; G09B17/04; G07; G07C; G07C7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A TACHISTOSCOPIC DEVICE COMPRISING: (A) A HOUSING HAVING VERTICAL SIDES AND CARD MOVEMENT; CARD INDEX AND CARD VIEWING APERTURES IN ITS TOP; (B) A CARD VIEWING SHELF SUPPORTED BENEATH SAID APERTURES BETWEEN THE SIDES OF SAID HOUSING AND UPON ONE VERTICAL END SECTION OF SAID HOUSING SECURED BETWEEN SAID HOUSING SIDES; (C) A CARD STORAGE SHELF SECURED BENEATH SAID VIEWING SHELF AND BETWEEN SAID VERTICAL SIDES AND SAID VERTICAL END OF SAID CARD VIEWING SHELF, (D) A CARD VIEWING MASK PARTIALLY COVERING SAID HOUSING, A VIEWING APERTURE AND A SHUTTER HANDLE SLOT ENDS, A VIEWING APERTURE AND A SHUTTER HANDLE SLOT WITH LATERALLY DISPOSED NOTCHES, SAID VIEWING APERTURES OF SAID MASK BEING IN REGISTRY WITH SAID VIEWING APERTURE OF SAID HOUSING; AND (E) A SHUTTER SECURED AT ONE END TO SAID MASK AND POSITIONED BETWEEN BOTH SAID VIEWING APERTURE AND LIMITED IN MOVEMENT BY SAID VERTICALLY DISPOSED SIDES AND ENDS, SAID SHUTTER HAVING A SHUTTER OPENING MOVABLE BETWEEN SAID VIEWING OPENINGS AND A SHUTTER HANDLE OF INVERTED T-SHAPED CONFIGURATION EXTENDING THROUGH SAID SHUTTER HANDLE CHANNEL OF SAID MASK, THE INVERTED T-SHAPED BASE OF SAID SHUTTER HANDLE BEING LOCKABLE WITHIN SAID LATERALLY DISPOSED NOTCHES OF SAID SHUTTER HANDLE SLOT OPENING.
Claim 2
Dependent Claim
199 words
A TACHISTOSCOPIC DEVICE COMPRISING: (A) A HOUSING HAVING VERTICAL SIDES AND CARD MOVEMENT; CARD INDEX AND CARD VIEWING APERTURES IN ITS TOP; (B) A CARD VIEWING SHELF SUPPORTED BENEATH SAID APERTURES BETWEEN THE SIDES OF SAID HOUSING AND UPON ONE VERTICAL END SECTION OF SAID HOUSING SECURED BETWEEN SAID HOUSING SIDES; (C) A CARD STORAGE SHELF SECURED BENEATH SAID VIEWING SHELF AND BETWEEN SAID VERTICAL SIDES AND SAID VERTICAL END OF SAID CARD VIEWING SHELF, (D) A CARD VIEWING MASK PARTIALLY COVERING SAID HOUSING, A VIEWING APERTURE AND A SHUTTER HANDLE SLOT ENDS, A VIEWING APERTURE AND A SHUTTER HANDLE SLOT WITH LATERALLY DISPOSED NOTCHES, SAID VIEWING APERTURES OF SAID MASK BEING IN REGISTRY WITH SAID VIEWING APERTURE OF SAID HOUSING; AND (E) A SHUTTER SECURED AT ONE END TO SAID MASK AND POSITIONED BETWEEN BOTH SAID VIEWING APERTURE AND LIMITED IN MOVEMENT BY SAID VERTICALLY DISPOSED SIDES AND ENDS, SAID SHUTTER HAVING A SHUTTER OPENING MOVABLE BETWEEN SAID VIEWING OPENINGS AND A SHUTTER HANDLE OF INVERTED T-SHAPED CONFIGURATION EXTENDING THROUGH SAID SHUTTER HANDLE CHANNEL OF SAID MASK, THE INVERTED T-SHAPED BASE OF SAID SHUTTER HANDLE BEING LOCKABLE WITHIN SAID LATERALLY DISPOSED NOTCHES OF SAID SHUTTER HANDLE SLOT OPENING.
References Cited (Backward Citations)
US2723466A
Cited
US2791843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |