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US2979670A
Expired / Lapsed
US
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Apparatus for scanning pointer positions
Assignee: Metrawatt AG
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Filing: 1957-10-01
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Granted: 1961-04-11
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Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Unger Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:09
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/204; G01D5/2053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1621034A
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US2154287A
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US2325927A
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US2519807A
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US2505577A
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US2584728A
Cited
US2647252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |