US2297108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent material
Assignee: General Electric Co
•
Filing: 1942-01-30
•
Granted: 1942-09-29
•
Expires: 1962-01-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Mckeag
- 👤 Ranby Peter Whitten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:47
CPC Classifications
G; G01; G01F; G01F5/00; G01F5/005; C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7728; C09K11/77342; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/143
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) | 1945-09-28 | 1946-03-30 | 1946-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-28 | 1950-03-30 | 1950-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-28 | 1954-03-30 | 1954-09-29 | $7700.00 | Window Closed / Lapsed |