US3119038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron multiplier
Assignee: Bush and Rank Cintel Ltd
•
Filing: 1960-05-23
•
Granted: 1964-01-21
•
Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Raffan William Paterso Forsyth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:44
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A DYNODE ARRANGEMENT FOR AN ELECTRON MULTIPLIER COMPRISING: A BASE MEMBER OF A MATERIAL RELATIVELY SUSCEPTIBLE TO FORMING; A SECONDARY-EMISSIVE ELECTRODE OF A SECONDARY-EMISSIVE MATERIAL RELATIVELY DIFFICULT TO FORM AND OF GENERALLY CYLINDRO-SEGMENTAL SHAPE; AND AT LEAST ONE HOLDING DEVICE, RELATIVELY PERMANENTLY CONNECTED TO SAID BASE MEMBER BUT REMOVABLY CONNECTED TO SAID ELEC-
Claim 2
Dependent Claim
53 words
A DYNODE ARRANGEMENT FOR AN ELECTRON MULTIPLIER COMPRISING: A BASE MEMBER OF A MATERIAL RELATIVELY SUSCEPTIBLE TO FORMING; A SECONDARY-EMISSIVE ELECTRODE OF A SECONDARY-EMISSIVE MATERIAL RELATIVELY DIFFICULT TO FORM AND OF GENERALLY CYLINDRO-SEGMENTAL SHAPE; AND AT LEAST ONE HOLDING DEVICE, RELATIVELY PERMANENTLY CONNECTED TO SAID BASE MEMBER BUT REMOVABLY CONNECTED TO SAID ELEC-
References Cited (Backward Citations)
US2245624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |