US3062962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photo-electron image multiplier
Assignee: National Research Development Corp UK
•
Filing: 1957-11-25
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Granted: 1962-11-06
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Mcgee James Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
C; C03; C03C; C03C15/00; H; H01; H01J; H01J29/00; H01J29/02; H01J29/023; H01J31/00; H01J31/08; H01J31/50; H01J31/506; H01J31/507; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |