US3398394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine seismic array depth control
Assignee: TDY Industries LLC
•
Filing: 1966-12-09
•
Granted: 1968-08-20
•
Expires: 1986-12-09
Abstract
No abstract record available.
Inventors
- 👤 William H Luehrmann
- 👤 William H Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:25
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/38; G01V1/3817; G01V1/3826; G01V1/16; G01V1/20; G01V1/201; Y; Y02; Y02A; Y02A90/00; Y02A90/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735303A
Cited
US2695585A
Cited
US3331050A
Cited
US3308425A
Cited
US3299399A
Cited
US3332058A
Cited
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 |