Patent US2131459A successfully refreshed from Google Patents.
Patent US2971874A successfully refreshed from Google Patents.
Patent US3506334A successfully refreshed from Google Patents.
US2563879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time characteristic determination of recurrent signals
Assignee: Individual
•
Filing: 1947-07-22
•
Granted: 1951-08-14
•
Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Komnenus M Soukaras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:24
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02; H04B14/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB528192A
Cited
US2287174A
Cited
US2402916A
Cited
US2418127A
Cited
US2419219A
Cited
US2414477A
Cited
US2426910A
Cited
US2449819A
Cited
US2425066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |