US3446178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible scale speedometer construction
Assignee: Electrodynamics Inc
•
Filing: 1966-11-29
•
Granted: 1969-05-27
•
Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Donald R St Clair
- 👤 William H Redfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:41
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; Y; Y10; Y10S; Y10S116/00; Y10S116/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2175129A
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US2558276A
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US2657357A
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US2810362A
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US3263503A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |