Patent US2267255A successfully refreshed from Google Patents.
US2267255A
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Coloring material
Assignee: B F Drakenfeld & Co Inc
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Filing: 1936-09-30
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Granted: 1941-12-23
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Expires: 1956-09-30
Abstract
No abstract record available.
Inventors
- 👤 Remington Victor Hawthorne
- 👤 Andrews Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:48
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C8/00; C03C8/14; C04B41/45; C04B41/4584; C04B41/50; C04B41/5022; C04B41/80; C04B41/81; C04B41/85; C04B41/86; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996
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) | 1944-12-22 | 1945-06-23 | 1945-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-22 | 1949-06-23 | 1949-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-22 | 1953-06-23 | 1953-12-23 | $7700.00 | Window Closed / Lapsed |