US3046780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophone fluid condition monitor
Assignee: Individual
•
Filing: 1959-06-30
•
Granted: 1962-07-31
•
Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Leonard N Liebermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/02; G01N29/032
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1570781A
Cited
US1708487A
Cited
US2283750A
Cited
GB574819A
Cited
US2839915A
Cited
US2756404A
Cited
US2785567A
Cited
US2869357A
Cited
US2943476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |