Patent US1882131A successfully refreshed from Google Patents.
Patent US2408904A successfully refreshed from Google Patents.
US2408904A
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Color stabilization
Assignee: Industrial Patents Corp
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Filing: 1941-12-11
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Granted: 1946-10-08
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Expires: 1961-12-11
Abstract
No abstract record available.
Inventors
- 👤 Howard C Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:11
CPC Classifications
A; A23; A23C; A23C15/00; A23C15/12; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/742; A23B2/754; C; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C10; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0092; C10M2201/00; C10M2201/085; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/141; C10M2207/144; C10M2207/146; C10M2207/22; C10M2207/28; C10M2207/287; C10M2207/289; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10M2227/00; C10M2227/08; C10M2227/081; C10N; C10N2010/00; C10N2010/04
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) | 1949-10-07 | 1950-04-08 | 1950-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-07 | 1954-04-08 | 1954-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-07 | 1958-04-08 | 1958-10-08 | $7700.00 | Window Closed / Lapsed |