Patent US3474672A successfully refreshed from Google Patents.
US3474672A
Expired / Lapsed
US
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Stabilized platform for gravimeter
Assignee: Lacoste and Romberg Inc
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Filing: 1967-01-25
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Granted: 1969-10-28
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Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Lucien J B Lacoste
- 👤 Henry N Clarkson
- 👤 George V Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:07
CPC Classifications
G; G01; G01V; G01V7/00; G01V7/16; G12; G12B; G12B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2899826A
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US2964948A
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US2955474A
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US2944426A
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US3011346A
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US3075393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |