US3073981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive pickup tube having an electrically isolated mesh assembly
Assignee: RCA Corp
•
Filing: 1960-08-30
•
Granted: 1963-01-15
•
Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Louis D Miller
- 👤 Elvin M Musselman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34; H01J31/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PHOTOCONDUCTIVE PICKUP TUBE COMPRISING AN EVACUATED ENVELOPE, A PHOTOCONDUCTIVE TARGET IN SAID ENVELOPE, AN ELECTRON GUN IN SAID ENVELOPE FOR DIRECTING AN ELECTRON BEAM TOWARD SAID PHOTOCONDUCTIVE TARGET AND HAVING AN AXIS, SAID ELECTRON GUN TERMINATING ADJACENT TO SAID PHOTOCONDUCTIVE TARGET, A MESH SCREEN ELECTRODE POSITIONED BETWEEN SAID ELECTRON GUN AND SAID PHOTOCONDUCTIVE TARGET, SAID MESH SCREEN ELECTRODE BEING SUPPORTED BY AND ELECTRICALLY INSULATED FROM SAID ELECTRON GUN BY MEANS INCLUDING AN ELECTRICAL INSULATOR EXTENDING SUBSTANTIALLY AROUND SAID AXIS OF SAID ELECTRON GUN.
Claim 2
Dependent Claim
84 words
A PHOTOCONDUCTIVE PICKUP TUBE COMPRISING AN EVACUATED ENVELOPE, A PHOTOCONDUCTIVE TARGET IN SAID ENVELOPE, AN ELECTRON GUN IN SAID ENVELOPE FOR DIRECTING AN ELECTRON BEAM TOWARD SAID PHOTOCONDUCTIVE TARGET AND HAVING AN AXIS, SAID ELECTRON GUN TERMINATING ADJACENT TO SAID PHOTOCONDUCTIVE TARGET, A MESH SCREEN ELECTRODE POSITIONED BETWEEN SAID ELECTRON GUN AND SAID PHOTOCONDUCTIVE TARGET, SAID MESH SCREEN ELECTRODE BEING SUPPORTED BY AND ELECTRICALLY INSULATED FROM SAID ELECTRON GUN BY MEANS INCLUDING AN ELECTRICAL INSULATOR EXTENDING SUBSTANTIALLY AROUND SAID AXIS OF SAID ELECTRON GUN.
References Cited (Backward Citations)
US2975313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |