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US2429612A
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Gyroscope
Assignee: Sperry Gyroscope Co Inc
•
Filing: 1943-05-10
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Granted: 1947-10-28
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Expires: 1963-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert S Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:27
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/34; G01C19/38; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1232; Y10T74/1254; Y10T74/1261; Y10T74/1279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1136566A
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US1228061A
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GB180413A
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US2053154A
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US2137974A
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US2220055A
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US2158500A
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US2367465A
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US2269602A
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US2342637A
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US2323566A
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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) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |