Patent US2732424A successfully refreshed from Google Patents.
US2732424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
oliver
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
H; H03; H03M; H03M3/00; H03M3/04; H04; H04N; H04N19/00; H04N19/50; H04N19/593
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202605A
Cited
US2321611A
Cited
FR928783A
Cited
US2516587A
Cited
US2530538A
Cited
US2629010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |