US1760479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant-energy control system
Assignee: Individual
•
Filing: 1927-05-04
•
Granted: 1930-05-27
•
Expires: 1947-05-04
Abstract
No abstract record available.
Inventors
- 👤 Howard D Colman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:32
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05F15/77
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) | 1933-05-26 | 1933-11-25 | 1934-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-05-26 | 1937-11-25 | 1938-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-05-26 | 1941-11-25 | 1942-05-27 | $7700.00 | Window Closed / Lapsed |