US3435250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state microwave acoustic delay line and frequency converter
Assignee: United States Department of the Army
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Filing: 1967-08-18
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Granted: 1969-03-25
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Expires: 1987-08-18
Abstract
No abstract record available.
Inventors
- 👤 Frank Reggia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:38
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; G; G01; G01S; G01S7/00; G01S7/02; G01S7/35; G01S7/352; H03D; H03D9/00; H03D9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |