US3387137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-passage electron multiplier with potential differences between passageways
Assignee: US Philips Corp
•
Filing: 1964-04-29
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Granted: 1968-06-04
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Adams John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:11
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24; H01J29/00; H01J29/02; H01J29/023; H01J31/00; H01J31/08; H01J31/50; H01J31/505; H01J31/506; H01J31/507
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2841729A
Cited
US3235765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |