US2467699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric time base circuits
Assignee: Mullard Radio Valve Co Ltd
•
Filing: 1946-03-18
•
Granted: 1949-04-19
•
Expires: 1966-03-18
Abstract
No abstract record available.
Inventors
- 👤 Richards Claude Langdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/28; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB482370A
Cited
FR826750A
Cited
US2280990A
Cited
US2308908A
Cited
US2284101A
Cited
US2284378A
Cited
US2282895A
Cited
US2412485A
Cited
US2413063A
Cited
US2373165A
Cited
US2412542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |