US2949672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stationary field scanning system
Assignee: North American Aviation Corp
•
Filing: 1952-02-18
•
Granted: 1960-08-23
•
Expires: 1972-02-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Ostergren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/02; G01J5/04; G01J5/07; G01J5/08; G01J5/0803; G01J5/0804; G01J5/0831; G01J5/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2369622A
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US2476985A
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US2371963A
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US2499941A
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US2432123A
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US2439392A
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US2462925A
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US2513367A
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US2606229A
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US2713134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |