US2594334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fery-prism monochromator
Assignee: Beckman Coulter Inc
•
Filing: 1949-09-24
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Granted: 1952-04-29
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Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 William C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/14; G01J3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007346A
Cited
FR625906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |