US1519448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for artificially reconstituting daylight
Assignee: Individual
•
Filing: 1923-09-17
•
Granted: 1924-12-16
•
Expires: 1943-09-17
Abstract
No abstract record available.
Inventors
- 👤 Gamain Charles Henri Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:40
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1927-12-16 | 1928-06-16 | 1928-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-12-16 | 1932-06-16 | 1932-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-12-16 | 1936-06-16 | 1936-12-16 | $7700.00 | Window Closed / Lapsed |