Patent US1899085A successfully refreshed from Google Patents.
US1899085A
Expired / Lapsed
US
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Illuminating means
Assignee: Individual
•
Filing: 1931-11-24
•
Granted: 1933-02-28
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Expires: 1951-11-24
Abstract
No abstract record available.
Inventors
- 👤 Milo H Egan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:49
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; F; F21; F21V; F21V9/00; F21V9/40; F21W; F21W2131/00; F21W2131/40; F21W2131/406; Y; Y10; Y10S; Y10S362/00; Y10S362/812
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) | 1936-02-28 | 1936-08-29 | 1937-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-28 | 1940-08-29 | 1941-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-28 | 1944-08-29 | 1945-02-28 | $7700.00 | Window Closed / Lapsed |