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Patent US3229143A successfully refreshed from Google Patents.
US3229143A
Expired / Lapsed
US
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Electron multiplier device
Assignee: NUCLIDE CORP
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Filing: 1961-10-06
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Granted: 1966-01-11
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Bartschat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A DYNODE EVOLVED FROM A BLANK OF SHEET MATERIAL FOR USE IN AN ELECTRON MULTIPLIER DEVICE, SAID BLANK COMPRISING A MAIN BODY PORTION, SIDE EXTENSION MEMBERS CONNECTED WITH THE LOWER PORTION OF SAID MAIN BODY PORTION AND EXTENDING OUTWARDLY THEREFROM, ARCUATE EDGE PORTIONS CARRIED BY SAID SAID EXTENSION MEMBERS REARWARDLY OF SAID MAIN BODY PORTION, APERTURED EXTENSIONS CONNECTED TO SAID ARCUATE EDGE PORTIONS AND EXTENDING INWARDLY TOWARDS EACH OTHER IN PARALLEL RELATION.
Claim 2
Dependent Claim
72 words
A DYNODE EVOLVED FROM A BLANK OF SHEET MATERIAL FOR USE IN AN ELECTRON MULTIPLIER DEVICE, SAID BLANK COMPRISING A MAIN BODY PORTION, SIDE EXTENSION MEMBERS CONNECTED WITH THE LOWER PORTION OF SAID MAIN BODY PORTION AND EXTENDING OUTWARDLY THEREFROM, ARCUATE EDGE PORTIONS CARRIED BY SAID SAID EXTENSION MEMBERS REARWARDLY OF SAID MAIN BODY PORTION, APERTURED EXTENSIONS CONNECTED TO SAID ARCUATE EDGE PORTIONS AND EXTENDING INWARDLY TOWARDS EACH OTHER IN PARALLEL RELATION.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |