US2764464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital graph follower plotter
Assignee: North American Aviation Corp
•
Filing: 1952-07-02
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Granted: 1956-09-25
•
Expires: 1972-07-02
Abstract
No abstract record available.
Inventors
- 👤 Robert C Morton
- 👤 Seid Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:12
CPC Classifications
G; G01; G01D; G01D9/00; G01D9/28; G01D9/285; B; B43; B43L; B43L13/00; B43L13/02; B43L13/022; B43L13/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320291A
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DE324816C
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US1285169A
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DE334986C
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US2099616A
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US2397777A
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US2496552A
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US2569328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |