US2655802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for photochemical dyeing
Assignee: BROWN ALLCN CHEMICALS Inc
•
Filing: 1950-01-05
•
Granted: 1953-10-20
•
Expires: 1970-01-05
Abstract
No abstract record available.
Inventors
- 👤 Leonard E Ravich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310511A
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US1271790A
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US1881310A
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US1980971A
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US2214365A
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US2206611A
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US2485267A
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US2499153A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |