US2462945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable predetermined number pulse generator
Assignee: COLONIAL RADIO Corp
•
Filing: 1944-08-14
•
Granted: 1949-03-01
•
Expires: 1964-08-14
Abstract
No abstract record available.
Inventors
- 👤 Robert W Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; H03K3/78; H04; H04M; H04M19/00; H04M19/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1163346A
Cited
US2323019A
Cited
GB485703A
Cited
US2295585A
Cited
US2277000A
Cited
GB550917A
Cited
US2411648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |