US2932002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic position finder
Assignee: Individual
•
Filing: 1957-07-22
•
Granted: 1960-04-05
•
Expires: 1977-07-22
Abstract
No abstract record available.
Inventors
- 👤 Keiser Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:41
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1378960A
Cited
US1406996A
Cited
US1502243A
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US1415973A
Cited
US1645810A
Cited
US2418136A
Cited
US2424773A
Cited
US2611023A
Cited
US2767917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |