US2793560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color analyzer
Assignee: Zenith Electronics LLC
•
Filing: 1953-03-10
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Granted: 1957-05-28
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Expires: 1973-03-10
Abstract
No abstract record available.
Inventors
- 👤 John L Rennick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/50; G01J3/502; G01J3/52; G01J3/524
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806198A
Cited
US1960097A
Cited
US2046958A
Cited
GB643396A
Cited
US2631489A
Cited
US2645971A
Cited
US2602368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |