Patent US2674887A successfully refreshed from Google Patents.
US2674887A
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US
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Gravity meter
Assignee: Texas Instruments Inc
•
Filing: 1947-12-08
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Granted: 1954-04-13
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Expires: 1967-12-08
Abstract
No abstract record available.
Inventors
- 👤 Samuel P Worden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:00
CPC Classifications
G; G01; G01V; G01V7/00; G01V7/08; G01V7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1639365A
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US1998345A
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US2279261A
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US2357356A
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US2367126A
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US2383997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |