Patent US3042899A successfully refreshed from Google Patents.
US3042899A
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US
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Ultrasonic vehicle detection system
Assignee: SPX Technologies Inc
•
Filing: 1959-06-16
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Granted: 1962-07-03
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Expires: 1979-06-16
Abstract
No abstract record available.
Inventors
- 👤 Hugh C Kendall
- 👤 Jr John H Auer
- 👤 Norman A Bolton
- 👤 Klaus H Frielinghaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/04; G08; G08G; G08G1/00; G08G1/01; G08G1/04; Y; Y10; Y10S; Y10S367/00; Y10S367/901; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2622140A
Cited
US2594276A
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US2815504A
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US2740112A
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US2814725A
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US2844763A
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US2837644A
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 |