Patent US2603123A successfully refreshed from Google Patents.
US2603123A
Expired / Lapsed
US
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Tristimulus integrator
Assignee: Wyeth Holdings LLC
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Filing: 1950-03-04
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Granted: 1952-07-15
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Expires: 1970-03-04
Abstract
No abstract record available.
Inventors
- 👤 Serge A Loukomsky
- 👤 Edwin I Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:38
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J1/00; G01J1/10; G01J1/20; G01J1/34; G01J1/36; G01J3/0205; G01J3/0251; G01J3/46; G01J3/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |