US3042897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive wave propagation direction indicator
Assignee: Individual
•
Filing: 1959-05-27
•
Granted: 1962-07-03
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Milton D Papineau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:04
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/80; G01S3/802; G01S3/808; G01S3/8083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2415088A
Cited
US2400552A
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US2424773A
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US2434644A
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US2539402A
Cited
US3005200A
Cited
US2800654A
Cited
US2916289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |