Patent US2930129A successfully refreshed from Google Patents.
US2930129A
Expired / Lapsed
US
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Positional orientation evaluator
Assignee: TDK Micronas GmbH
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Filing: 1956-06-13
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Granted: 1960-03-29
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Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Avery G Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:51
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/02; G06G1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US819591A
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US1965098A
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US2171561A
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US2361956A
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US2396141A
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US2706855A
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US2738584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |