US3027841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guidance system
Assignee: Northrop Grumman Corp
•
Filing: 1952-10-13
•
Granted: 1962-04-03
•
Expires: 1972-10-13
Abstract
No abstract record available.
Inventors
- 👤 Bruce E Dixson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:06
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/165; G01C21/1656; G01C21/1652
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077398A
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US2389142A
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US2410424A
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US2647707A
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US2566312A
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US2526682A
Cited
US2444933A
Cited
US2532402A
Cited
US2513367A
Cited
US2762123A
Cited
US2713134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |