US2565501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salinity indicator system
Assignee: PILOT MARINE Corp
•
Filing: 1945-10-27
•
Granted: 1951-08-28
•
Expires: 1965-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ingram Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:45
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/045; G01N27/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT73216B
Cited
US1450023A
Cited
US2150015A
Cited
US2122363A
Cited
US2221307A
Cited
US2224382A
Cited
US2306691A
Cited
US2370609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |