US2342152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for producing intensified colors or for intensifying the perception of colors
Assignee: Individual
•
Filing: 1937-09-22
•
Granted: 1944-02-22
•
Expires: 1957-09-22
Abstract
No abstract record available.
Inventors
- 👤 Leiber Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:51
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-02-21 | 1947-08-23 | 1948-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-21 | 1951-08-23 | 1952-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-21 | 1955-08-23 | 1956-02-22 | $7700.00 | Window Closed / Lapsed |