US2950391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorometer
Assignee: Bausch and Lomb Inc
•
Filing: 1957-06-26
•
Granted: 1960-08-23
•
Expires: 1977-06-26
Abstract
No abstract record available.
Inventors
- 👤 Corwin H Brumley
- 👤 Robert J Meltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:27
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/10; G01T1/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2549574A
Cited
US2551542A
Cited
US2593391A
Cited
US2730625A
Cited
US2710924A
Cited
US2855520A
Cited
US2829264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |