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Patent US3443104A successfully refreshed from Google Patents.
US3443104A
Expired / Lapsed
US
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Image intensifier tube with shading compensation
Assignee: Rauland Borg Corp
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Filing: 1966-02-17
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Granted: 1969-05-06
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Wilfrid F Niklas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:26
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198479A
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US2548118A
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US2757293A
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US2857589A
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US2824986A
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US2955218A
Cited
US3100845A
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US3213308A
Cited
US3308335A
Cited
US3368077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |