US3464056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for displaying the direction of incident plane waves
Assignee: Fried Krupp AG
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Filing: 1968-01-30
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Granted: 1969-08-26
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Expires: 1988-01-30
Abstract
No abstract record available.
Inventors
- 👤 Guenter Ziehm
- 👤 Karl-Friedrich Triebold
- 👤 Alfred Schief
- 👤 Reinhard W Leisterer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:48
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/80; G01S3/802; G01S3/8027; G01S1/00; G01S1/72
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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |