US2898490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target plate
Assignee: General Electric Co
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Filing: 1957-12-23
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Granted: 1959-08-04
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Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Richard W Damon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/08; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J9/00; H01J9/20; H01J9/233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AS A NEW ARTICLE OF MANUFACTURE, A TARGET PLATE FOR USE IN AN X-RAY SENSITIVE VIDICON TUBE AND THE LIKE, SAID PLATE COMPRISING AN ALUMINUM SUBSTRATE SHEET HAVING AN ANODIZED POROUS OXIDE FACIAL SURFACE, A METALLIC FILM BONDED TO SAID POROUS SURFACE AND COMPRISING A METAL WHOSE LEAD SALTS AND OXIDES ARE ELECTRICALLY, CONDUCTIVE WITH NOT TO EXCEED 1010 OHM/CM. RESISTIVITY, AND A LEAD OXIDE COATING ON THE SURFACE OF SAID FILM, SAID FILM HAVING AN OXIDE OF THE METAL OF SAID FILM UNIFORMLY DISTRIBUTED AT THE INTERFACE BETWEEN THE METALLIC FILM AND THE LEAD OXIDE.
Claim 2
Dependent Claim
96 words
AS A NEW ARTICLE OF MANUFACTURE, A TARGET PLATE FOR USE IN AN X-RAY SENSITIVE VIDICON TUBE AND THE LIKE, SAID PLATE COMPRISING AN ALUMINUM SUBSTRATE SHEET HAVING AN ANODIZED POROUS OXIDE FACIAL SURFACE, A METALLIC FILM BONDED TO SAID POROUS SURFACE AND COMPRISING A METAL WHOSE LEAD SALTS AND OXIDES ARE ELECTRICALLY, CONDUCTIVE WITH NOT TO EXCEED 1010 OHM/CM. RESISTIVITY, AND A LEAD OXIDE COATING ON THE SURFACE OF SAID FILM, SAID FILM HAVING AN OXIDE OF THE METAL OF SAID FILM UNIFORMLY DISTRIBUTED AT THE INTERFACE BETWEEN THE METALLIC FILM AND THE LEAD OXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |