US2821629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Limiter circuit
Assignee: TELE DYNAMICS Inc
•
Filing: 1955-08-31
•
Granted: 1958-01-28
•
Expires: 1975-08-31
Abstract
No abstract record available.
Inventors
- 👤 Finkel Leonard
- 👤 John S Pioutkowski
- 👤 Charles J Weidknecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/06; H03G11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200796A
Cited
US2276565A
Cited
US2401404A
Cited
US2441957A
Cited
US2731571A
Cited
US2552348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |