US3010072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal detector assembly
Assignee: Research Corp
•
Filing: 1958-11-20
•
Granted: 1961-11-21
•
Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Broekert James C De
- 👤 William E Ayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:31
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2557122A
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US2433387A
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US2498335A
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US2636120A
Cited
US2734170A
Cited
US2810829A
Cited
US2872569A
Cited
US2956160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |