US2694956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric colorimeter
Assignee: Individual
•
Filing: 1950-08-29
•
Granted: 1954-11-23
•
Expires: 1970-08-29
Abstract
No abstract record available.
Inventors
- 👤 Rebikoff Dimitri Issaiewitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:47
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2166824A
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GB508802A
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US2330877A
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US2319212A
Cited
US2382439A
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US2439373A
Cited
US2462823A
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US2455116A
Cited
FR925985A
Cited
US2579347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |