Patent US5484750A successfully refreshed from Google Patents.
Patent US3376949A successfully refreshed from Google Patents.
US3376949A
Expired / Lapsed
US
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Water hammer marine seismic source
Assignee: Texas Instruments Inc
•
Filing: 1966-12-08
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Granted: 1968-04-09
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Expires: 1986-12-08
Abstract
No abstract record available.
Inventors
- 👤 Buford M Baker
- 👤 Jr James H Waugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:27
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/133; G01V1/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1080098A
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US1504247A
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US2164858A
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US2693944A
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US2792804A
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US3189092A
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US3189870A
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US3318411A
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US3315755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |