US2442403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switching and computing device
Assignee: RCA Corp
•
Filing: 1942-09-23
•
Granted: 1948-06-01
•
Expires: 1962-09-23
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Flory
- 👤 George A Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:45
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB355705A
Cited
GB356111A
Cited
US1932589A
Cited
US2132654A
Cited
US2113214A
Cited
US2158285A
Cited
US2272070A
Cited
US2293177A
Cited
US2310105A
Cited
US2306386A
Cited
US2332300A
Cited
US2324314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |