US2417514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for producing colored photographic images
Assignee: SPECTRUM PRODUCTS Co Inc
•
Filing: 1940-09-23
•
Granted: 1947-03-18
•
Expires: 1960-09-23
Abstract
No abstract record available.
Inventors
- 👤 Henry T Neumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:12
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C7/413
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB284253A
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GB324048A
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US1958307A
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US2130322A
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US2110973A
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GB470074A
Cited
US2159600A
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GB503752A
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US2197311A
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US2196739A
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US2301387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |