US2417384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyed visible - l
Assignee: —
•
Filing: —
•
Granted: 1947-03-11
•
Expires: 1964-03-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
F; F21; F21K; F21K2/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191403473A
Cited
FR579896A
Cited
US2039734A
Cited
US2037793A
Cited
US1977329A
Cited
US2062179A
Cited
US2341009A
Cited
US2215196A
Cited
GB487510A
Cited
US2275290A
Cited
US2310740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |