US2211320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric controlling device
Assignee: Individual
•
Filing: 1938-01-14
•
Granted: 1940-08-13
•
Expires: 1958-01-14
Abstract
No abstract record available.
Inventors
- 👤 Efron George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
H; H01; H01J; H01J40/00; H01J40/02; H01J40/14; G; G06; G06V; G06V10/00; G06V10/88; Y; Y10; Y10S; Y10S33/00; Y10S33/03
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) | 1943-08-13 | 1944-02-12 | 1944-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-13 | 1948-02-12 | 1948-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-13 | 1952-02-12 | 1952-08-13 | $7700.00 | Window Closed / Lapsed |