US2863240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced color illumination system
Assignee: Individual
•
Filing: 1956-06-08
•
Granted: 1958-12-09
•
Expires: 1976-06-08
Abstract
No abstract record available.
Inventors
- 👤 Bernard R Glukes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:19
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US643872A
Cited
US655264A
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US1374282A
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US1276494A
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US1348957A
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US1342247A
Cited
US1357783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |