US3252030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric camera tube with transistor-type photoanode
Assignee: Babcock and Wilcox Co
•
Filing: 1960-06-21
•
Granted: 1966-05-17
•
Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Cawein Madison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A PHOTOELECTRIC CAMERA PICKUP DEVICE INCLUDING AN ENVELOPE HAVING A WINDOW THEREIN, A PHOTOELECTRODE MOUNTED RELATIVELY CLOSE TO THE WINDOW AND ADAPTED TO BE ILLUMINATED ON ITS FRONT SURFACE THROUGH THE WINDOW, SAID PHOTOELECTRODE HAVING A STRUCTURE FORMED OF A SINGLE CRYSTAL, A PLURALITY OF DISCONTINUOUS PORTIONS ON THE REAR SURFACE OF SAID PHOTOELECTRODE AND COMPRISED OF MATERIAL MORE ELECTRICALLY CONDUCTIVE THAN THE PHOTOELECTRODE, AND DYNAMIC SCANNING MEANS ADAPTED TO COMMUTATE SAID PORTIONS ON THE REAR SURFACE OF SAID PHOTOELECTRODE.
Claim 2
Dependent Claim
81 words
IN A PHOTOELECTRIC CAMERA PICKUP DEVICE INCLUDING AN ENVELOPE HAVING A WINDOW THEREIN, A PHOTOELECTRODE MOUNTED RELATIVELY CLOSE TO THE WINDOW AND ADAPTED TO BE ILLUMINATED ON ITS FRONT SURFACE THROUGH THE WINDOW, SAID PHOTOELECTRODE HAVING A STRUCTURE FORMED OF A SINGLE CRYSTAL, A PLURALITY OF DISCONTINUOUS PORTIONS ON THE REAR SURFACE OF SAID PHOTOELECTRODE AND COMPRISED OF MATERIAL MORE ELECTRICALLY CONDUCTIVE THAN THE PHOTOELECTRODE, AND DYNAMIC SCANNING MEANS ADAPTED TO COMMUTATE SAID PORTIONS ON THE REAR SURFACE OF SAID PHOTOELECTRODE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |