USRE22052E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive device
Assignee: —
•
Filing: —
•
Granted: 1942-03-24
•
Expires: 1959-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/047; F; F27; F27D; F27D1/00; F27D1/16; H10F; H10F10/00; H10F10/10; H10F10/18; H10F77/00; H10F77/20; H10F77/244; H10F77/254; F27B; F27B3/00; F27B3/10; F27B3/12; F27B2003/125; F27D1/0003; F27D1/0006; F27M; F27M2003/00; F27M2003/08; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/931; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12771; Y10T428/12785; Y10T428/12861; Y10T428/12986
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) | 1945-03-23 | 1945-09-22 | 1946-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-23 | 1949-09-22 | 1950-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-23 | 1953-09-22 | 1954-03-24 | $7700.00 | Window Closed / Lapsed |