US3392369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-actuated, dual piston, underwater sound generator
Assignee: Textron Electronics Inc
•
Filing: 1958-04-01
•
Granted: 1968-07-09
•
Expires: 1978-04-01
Abstract
No abstract record available.
Inventors
- 👤 John A Dickie
- 👤 Jr Theron Usher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:06
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1690177A
Cited
US1692766A
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US1747049A
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US1776252A
Cited
US2081619A
Cited
US2142221A
Cited
US2172066A
Cited
US2424357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |