US2604263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency counter
Assignee: RCA Corp
•
Filing: 1947-05-22
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Granted: 1952-07-22
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Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Olin L Macsorley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:24
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB355705A
Cited
US2411714A
Cited
US2407320A
Cited
US2422698A
Cited
US2416095A
Cited
US2381920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |