US2427013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Densitometer for measuring the light transmission of a fluid while submerged therein
Assignee: Individual
•
Filing: 1944-08-29
•
Granted: 1947-09-09
•
Expires: 1964-08-29
Abstract
No abstract record available.
Inventors
- 👤 Macadams Jesse Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:35
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123573A
Cited
US1746616A
Cited
GB389599A
Cited
US2147156A
Cited
US2073223A
Cited
US2064517A
Cited
US2324304A
Cited
US2394129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |