US3203644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyroscopic inertial space drive
Assignee: Individual
•
Filing: 1961-01-05
•
Granted: 1965-08-31
•
Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Hosford Dudley Kellogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:44
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1218; Y10T74/18; Y10T74/18528; Y10T74/18536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734383A
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US2088115A
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US2223745A
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US2571159A
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US2639631A
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US2886976A
Cited
US2811050A
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US3006581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |