Patent US3002097A successfully refreshed from Google Patents.
US3002097A
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Assignee: Northrop Grumman Corp
•
Filing: 1953-02-09
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Granted: 1961-09-26
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Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Nuut August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:30
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/165; G01C21/1656; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2102145A
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US2369622A
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US2428990A
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US2425541A
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US2468042A
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US2513367A
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |