Patent US2875273A successfully refreshed from Google Patents.
US2875273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color-television projector
Assignee: Hazeltine Research Inc
•
Filing: 1956-04-25
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Granted: 1959-02-24
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 William F Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:46
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/58; H01J29/64; H01J29/68; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2744951A
Cited
US2790920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |