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US2985399A
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Surface position indicator with fail-safe means
Assignee: GPE Controls Inc
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Filing: 1958-10-02
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Granted: 1961-05-23
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Expires: 1978-10-02
Abstract
No abstract record available.
Inventors
- 👤 David B Digel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:14
CPC Classifications
G; G01; G01B; G01B13/00; B; B65; B65H; B65H59/00; B65H59/38; B65H59/381; B65H63/00; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |