US2455992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tube amusement device
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1947-01-25
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Granted: 1948-12-14
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Expires: 1967-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas T Goldsmith
- 👤 Mann Estle Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/24; A63F9/02; A63F9/0291; H; H03; H03K; H03K6/00; H03K6/02; A63F2009/2448; A63F2009/245; A63F2009/2457; A63F9/0204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2413785A
Cited
US2098384A
Cited
US2062538A
Cited
US2179097A
Cited
US2313018A
Cited
US2406858A
Cited
US2425330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |