US2409229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selector circuit
Assignee: Individual
•
Filing: 1945-06-13
•
Granted: 1946-10-15
•
Expires: 1965-06-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl Harrison Smith
- 👤 Milton L Kuder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:17
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/22; H04L5/24; H04L5/245; H03; H03K; H03K17/00; H03K17/51; H03K17/54; H03K5/00; H03K5/156
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-10-14 | 1950-04-15 | 1950-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-14 | 1954-04-15 | 1954-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-14 | 1958-04-15 | 1958-10-15 | $7700.00 | Window Closed / Lapsed |