Patent US3202824A successfully refreshed from Google Patents.
US3202824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pickup device
Assignee: Verizon Laboratories Inc
•
Filing: 1961-02-23
•
Granted: 1965-08-24
•
Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Yando Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:03
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; G; G09; G09F; G09F9/00; G09F9/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A LIGHT SENSITIVE PICKUP DEVICE COMPRISING A STRIP OF PIEZOELECTRIC MATERIAL HAVING FIRST AND SECOND OPPOSITE SURFACES; A PHOTOCONDUCTIVE LAYER PLACED IN INTIMATE ENGAGEMENT WITH THE FIRST SURFACE OF SAID STRIP INTERMEDIATE THE ENDS THEREOF; A BACKING ELECTRODE AFFIXED TO THE SECOND SURFACE OF SAID STRIP; A CONTACT SECURED TO THE FIRST SURFACE OF SAID STRIP ADJACENT ONE END THEREOF; SAID CONTACT BEING SPACED FROM SAID PHOTOCONDUCTIVE LAYER, MEANS FOR APPLYING A VOLTAGE BETWEEN SAID CONTACT AND SAID BACKING ELECTRODE, SAID VOLTAGE PRODUCING AN ELASTIC WAVE AND AN ACCOMPANYING ELECTRIC FIELD PROPAGATING FROM SAID CONTACT TO THE OTHER END OF SAID STRIP; AND A TRANSPARENT CON-/ DUCTIVE LAYER AFFIXED TO THE SURFACE OF SAID PHOTOCONDUCTIVE LAYER, AN OUTPUT VOLTAGE PULSE BEING PRODUCED BETWEEN SAID TRANSPARENT ELECTRODE AND SAID BACKING ELECTRODE WHEN THE POSITION OF SAID ELASTIC WAVE COINCIDES WITH AN ILLUMINATED PORTION OF SAID PHOTOCONDUCTIVE LAYER.
Claim 2
Dependent Claim
146 words
A LIGHT SENSITIVE PICKUP DEVICE COMPRISING A STRIP OF PIEZOELECTRIC MATERIAL HAVING FIRST AND SECOND OPPOSITE SURFACES; A PHOTOCONDUCTIVE LAYER PLACED IN INTIMATE ENGAGEMENT WITH THE FIRST SURFACE OF SAID STRIP INTERMEDIATE THE ENDS THEREOF; A BACKING ELECTRODE AFFIXED TO THE SECOND SURFACE OF SAID STRIP; A CONTACT SECURED TO THE FIRST SURFACE OF SAID STRIP ADJACENT ONE END THEREOF; SAID CONTACT BEING SPACED FROM SAID PHOTOCONDUCTIVE LAYER, MEANS FOR APPLYING A VOLTAGE BETWEEN SAID CONTACT AND SAID BACKING ELECTRODE, SAID VOLTAGE PRODUCING AN ELASTIC WAVE AND AN ACCOMPANYING ELECTRIC FIELD PROPAGATING FROM SAID CONTACT TO THE OTHER END OF SAID STRIP; AND A TRANSPARENT CON-/ DUCTIVE LAYER AFFIXED TO THE SURFACE OF SAID PHOTOCONDUCTIVE LAYER, AN OUTPUT VOLTAGE PULSE BEING PRODUCED BETWEEN SAID TRANSPARENT ELECTRODE AND SAID BACKING ELECTRODE WHEN THE POSITION OF SAID ELASTIC WAVE COINCIDES WITH AN ILLUMINATED PORTION OF SAID PHOTOCONDUCTIVE LAYER.
References Cited (Backward Citations)
US2793288A
Cited
US2816236A
Cited
US2941110A
Cited
US2917669A
Cited
US2951168A
Cited
US2945984A
Cited
US3065378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |