US2519773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna tracking system
Assignee: Individual
•
Filing: 1944-07-18
•
Granted: 1950-08-22
•
Expires: 1964-07-18
Abstract
No abstract record available.
Inventors
- 👤 Richard W Lee
- 👤 Eugene A Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:59
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/24; G01D5/241; G01D5/2412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633870A
Cited
US1589925A
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US1705734A
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US1918238A
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US1809683A
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US1904165A
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GB335618A
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US2036833A
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US1970442A
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US2052385A
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US2205866A
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US2178471A
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US2288838A
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US2255502A
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US2303214A
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US2404238A
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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) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |