US1716756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-projection system
Assignee: —
•
Filing: —
•
Granted: 1929-06-11
•
Expires: 1946-06-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:23
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/09; G02B27/0938; G02B27/095; G02B27/0955; G02B27/0905
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) | 1932-06-10 | 1932-12-10 | 1933-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-06-10 | 1936-12-10 | 1937-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-06-10 | 1940-12-10 | 1941-06-11 | $7700.00 | Window Closed / Lapsed |