US2621294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for providing timed electrical impulses
Assignee: Individual
•
Filing: 1948-04-27
•
Granted: 1952-12-09
•
Expires: 1968-04-27
Abstract
No abstract record available.
Inventors
- 👤 Podbielniak Thaddeus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:35
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1561001A
Cited
US1762811A
Cited
US1893029A
Cited
GB395297A
Cited
US2054882A
Cited
US2167496A
Cited
US2401424A
Cited
US2263986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |