US3003391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color image formation in which only one color filter is employed in projection
Assignee: Polaroid Corp
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Filing: 1955-04-28
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Granted: 1961-10-10
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
H; H04; H04N; H04N11/00; G; G03; G03B; G03B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2249032A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |