US2766686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed electro-mechanical interference-type transducer
Assignee: Raytheon Co
•
Filing: 1953-09-01
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Granted: 1956-10-16
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Expires: 1973-09-01
Abstract
No abstract record available.
Inventors
- 👤 Sergei M Fomenko
- 👤 Alfred M Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:04
CPC Classifications
B; B41; B41J; B41J9/00; B41J9/26; B41J9/32; B41J9/02; B41J9/10; G; G06; G06K; G06K15/00; G06K15/02; G06K15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |