US1966059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of white light
Assignee: GEORGE SLAFF
•
Filing: 1933-03-13
•
Granted: 1934-07-10
•
Expires: 1953-03-13
Abstract
No abstract record available.
Inventors
- 👤 Chiera Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/02; G; G01; G01J; G01J3/00; G01J3/02; G01J3/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495
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) | 1937-07-09 | 1938-01-08 | 1938-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-09 | 1942-01-08 | 1942-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-09 | 1946-01-08 | 1946-07-10 | $7700.00 | Window Closed / Lapsed |