US2964990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal modulation system for electrooptical measurements of distances
Assignee: Askania Werke AG
•
Filing: 1957-05-13
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Granted: 1960-12-20
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Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Pocher Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:56
CPC Classifications
G; G01; G01S; G01S17/00; G01S17/02; G01S17/06; G01S17/08; G01S17/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1750668A
Cited
US2169374A
Cited
US2144203A
Cited
US2248727A
Cited
US2324077A
Cited
US2705320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |