US3127535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual readout device
Assignee: Individual
•
Filing: 1958-11-21
•
Granted: 1964-03-31
•
Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 Harold T Westerheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:12
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A VISUAL READOUT DEVICE COMPRISING A PLURALITY OF STACKED PLATES OF TRANSPARENT MATERIAL, CERTAIN OF SAID PLATES HAVING A TRANSPARENT CONDUCTIVE SYMBOL DEPOSITED ON THE FRONT SIDE THEREOF AND ANOTHER CONDUCTIVE SYMBOL ON THE REAR SIDE THEREOF, A PLURALITY OF INSULATING MEMBERS SPACED IN ALTERNATE FASHION BETWEEN SAID PLATES AND PROVIDED WITH A CENTRALLY LOCATED APERTURE, A CHANNEL EXTENDING LONGITUDINALLY THROUGH SAID PLATES AND SAID INSULATING MEMBERS, A SINGLE GLOW DISCHARGE GAS ENTIRELY FILLING SAID CHANNEL AND THE APERTURES IN SAID INSULATING MEMBERS, AND MEANS FOR PRODUCING A GASEOUS DISCHARGE BETWEEN THE CONDUCTIVE SYMBOL ON THE REAR SIDE OF A SELECTED ONE OF SAID PLATES AND THE CONDUCTIVE SYMBOL ON THE FRONT SIDE OF THE NEXT SUCCEEDING PLATE.
Claim 2
Dependent Claim
118 words
A VISUAL READOUT DEVICE COMPRISING A PLURALITY OF STACKED PLATES OF TRANSPARENT MATERIAL, CERTAIN OF SAID PLATES HAVING A TRANSPARENT CONDUCTIVE SYMBOL DEPOSITED ON THE FRONT SIDE THEREOF AND ANOTHER CONDUCTIVE SYMBOL ON THE REAR SIDE THEREOF, A PLURALITY OF INSULATING MEMBERS SPACED IN ALTERNATE FASHION BETWEEN SAID PLATES AND PROVIDED WITH A CENTRALLY LOCATED APERTURE, A CHANNEL EXTENDING LONGITUDINALLY THROUGH SAID PLATES AND SAID INSULATING MEMBERS, A SINGLE GLOW DISCHARGE GAS ENTIRELY FILLING SAID CHANNEL AND THE APERTURES IN SAID INSULATING MEMBERS, AND MEANS FOR PRODUCING A GASEOUS DISCHARGE BETWEEN THE CONDUCTIVE SYMBOL ON THE REAR SIDE OF A SELECTED ONE OF SAID PLATES AND THE CONDUCTIVE SYMBOL ON THE FRONT SIDE OF THE NEXT SUCCEEDING PLATE.
References Cited (Backward Citations)
US2142106A
Cited
US2132912A
Cited
US2623111A
Cited
US2848638A
Cited
US2756366A
Cited
US2928014A
Cited
US2878407A
Cited
US2962698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |