US2682479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosurface of a panchromatic type and method of preparing same
Assignee: RCA Corp
•
Filing: 1949-03-03
•
Granted: 1954-06-29
•
Expires: 1969-03-03
Abstract
No abstract record available.
Inventors
- 👤 Johnson Ralph Eston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:47
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/38; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PHOTOSENSITIVE ELECTRODE COMPRISING, A SUPPORT, A LAYER OF SILVER-BISMUTH ALLOY ON THE SURFACE OF SAID SUPPORT, AND A DEPOSIT OF ALKALI METAL ON SAID ALLOY LAYER.
Claim 2
Dependent Claim
27 words
A PHOTOSENSITIVE ELECTRODE COMPRISING, A SUPPORT, A LAYER OF SILVER-BISMUTH ALLOY ON THE SURFACE OF SAID SUPPORT, AND A DEPOSIT OF ALKALI METAL ON SAID ALLOY LAYER.
References Cited (Backward Citations)
US1738957A
Cited
US1894946A
Cited
US2123024A
Cited
US2254073A
Cited
US2297467A
Cited
US2285062A
Cited
US2285058A
Cited
US2244720A
Cited
US2404803A
Cited
US2404737A
Cited
US2413442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |