US3093319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing artificial daylight
Assignee: Individual
•
Filing: 1960-10-21
•
Granted: 1963-06-11
•
Expires: 1980-10-21
Abstract
No abstract record available.
Inventors
- 👤 Gamain Charles Henri Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1008588A
Cited
US1956630A
Cited
US1957404A
Cited
US2451580A
Cited
US2725461A
Cited
GB798884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |