US3558377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing a channel-multiplier plate
Assignee: Zenith Electronics LLC
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Filing: 1967-11-09
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Granted: 1971-01-26
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Expires: 1987-11-09
Abstract
Abstract A CHANNEL-MULTIPLIER PLATE HAS A MULTIPLICITY OF CHANNEL ELEMENTS INDIVIDUALLY HAVING A HOLLOW CORE IS SOLUBLE IN AN ETCHANT AND A SUPERPOSED OUTER LAYER THAT IS RELATIVELY INSOLUBLE IN THAT ETCHANT. ONE END OF THE CHANNEL PLATE IS IMMERSED IN A BATH OF THE ETCHANT WITH THE CHANNEL ELEMENTS PROJECTING ABOVE THE SURFACE OF THE BATH. THE DIMENSIONS OF THE CHANNEL ELEMENTS AND THE PROPERTIES OF THE ETCHANT RESULT IN THE CHANNELS FILLING WITH THE ETCHANT UNDER THE INFLUENCE OF CAPILLARY ACTION. THEREAFTER, THE PLATE IS TAKEN FROM THE BATH AND THE ETCHANT DISSOLVES THE INNER CORE OF EACH CHANNEL.
Inventors
- 👤 Anthony J Tantillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:43
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/15; C03B37/01; C03B37/02; C03B37/025; C03B37/028; C03C; C03C15/00; H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J43/246; B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5085; B01L3/50857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |