US2431402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoube and method of manufacture
Assignee: RCA Corp
•
Filing: 1943-03-31
•
Granted: 1947-11-25
•
Expires: 1963-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert B Janes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:20
CPC Classifications
H; H01; H01J; H01J40/00; H01J40/16; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/2949
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2218340A
Cited
US2192418A
Cited
US2206372A
Cited
US2297467A
Cited
US2244720A
Cited
US2401737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |