Patent US2153638A successfully refreshed from Google Patents.
US3128408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron multiplier
Assignee: Bendix Corp
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Filing: 1960-04-20
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Granted: 1964-04-07
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Expires: 1980-04-20
Abstract
No abstract record available.
Inventors
- 👤 George W Goodrich
- 👤 William C Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:08
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/506; C; C03; C03B; C03B23/00; C03B23/20; C03B23/203; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/027; C03B37/10; C03B37/14; C03B37/15; H01J29/00; H01J29/02; H01J29/023; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J43/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A MULTIPLIER COMPRISING WALL MEANS OF SECONDARY ELECTRON EMISSIVE MATERIAL DEFINING A MULTIPLYING PATH HAVING ITS LONGITUDINAL DIMENSION SUBSTANTIALLY LARGER THAN ITS LATERAL DIMENSION, ENTRANCE MEANS INTO THE MULTIPLYING PATH DEFINED BY SAID WALL MEANS, EXIT MEANS FROM THE MULTIPLYING PATH DEFINED BY SAID WALL MEANS SPACED FROM SAID ENTRANCE MEANS BY SAID LONGITUDINAL DIMENSION, SAID MULTIPLYING PATH BEING TOTALLY CLEAR OF A FIELD PRODUCING WIRE ON THE LONGITUDINAL AXIS OF THE MULTIPLYING PATH, SAID MULTIPLYING PATH BEING FREE OF ANY SUPERIMPOSED OSCILLATING ELECTRIC FIELD IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL AXIS,
Claim 2
Dependent Claim
93 words
A MULTIPLIER COMPRISING WALL MEANS OF SECONDARY ELECTRON EMISSIVE MATERIAL DEFINING A MULTIPLYING PATH HAVING ITS LONGITUDINAL DIMENSION SUBSTANTIALLY LARGER THAN ITS LATERAL DIMENSION, ENTRANCE MEANS INTO THE MULTIPLYING PATH DEFINED BY SAID WALL MEANS, EXIT MEANS FROM THE MULTIPLYING PATH DEFINED BY SAID WALL MEANS SPACED FROM SAID ENTRANCE MEANS BY SAID LONGITUDINAL DIMENSION, SAID MULTIPLYING PATH BEING TOTALLY CLEAR OF A FIELD PRODUCING WIRE ON THE LONGITUDINAL AXIS OF THE MULTIPLYING PATH, SAID MULTIPLYING PATH BEING FREE OF ANY SUPERIMPOSED OSCILLATING ELECTRIC FIELD IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL AXIS,
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |