US3498721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nephelometer
Assignee: United States Department of the Navy
•
Filing: 1966-09-07
•
Granted: 1970-03-03
•
Expires: 1986-09-07
Abstract
No abstract record available.
Inventors
- 👤 Edward M Thorndike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:20
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274; G01N21/47; G01N21/49; G01N21/53; G01N33/00; G01N33/0078; G01N33/0081; G01N21/84; G01N21/85; G01N21/8507
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2779233A
Cited
US2858727A
Cited
US2873644A
Cited
US3101232A
Cited
US3319514A
Cited
US3310680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |