US3397754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambient seismic noise elimination using horizontal component energy
Assignee: Texas Instruments Inc
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Filing: 1966-12-23
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Granted: 1968-08-20
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Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert B Roden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:34
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |