Patent US1874069A successfully refreshed from Google Patents.
US1874069A
Expired / Lapsed
US
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Device for mechanically sorting natural and artificial products according to their color and gradations of color
Assignee: Individual
•
Filing: 1927-06-06
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Granted: 1932-08-30
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Expires: 1947-06-06
Abstract
No abstract record available.
Inventors
- 👤 Weigl Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:59
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/342; B07C5/3425; Y; Y10; Y10S; Y10S209/00; Y10S209/905; Y10S209/91; Y10S209/914; Y10S209/933; Y10S209/941
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) | 1935-08-30 | 1936-02-29 | 1936-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-30 | 1940-02-29 | 1940-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-30 | 1944-02-29 | 1944-08-30 | $7700.00 | Window Closed / Lapsed |