Patent US2248148A successfully refreshed from Google Patents.
US2248148A
Expired / Lapsed
US
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Apparatus for comparing, matching, or detecting colors
Assignee: Individual
•
Filing: 1939-02-11
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Granted: 1941-07-08
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Expires: 1959-02-11
Abstract
No abstract record available.
Inventors
- 👤 Wilson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:15
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/1032; A61B5/1034; A61B5/44; A61B5/441; G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/29; G01N21/293; A61B5/0059
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) | 1944-07-07 | 1945-01-06 | 1945-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-07 | 1949-01-06 | 1949-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-07 | 1953-01-06 | 1953-07-08 | $7700.00 | Window Closed / Lapsed |