US2608650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio signal enhancing frequency conversion method
Assignee: Individual
•
Filing: 1943-09-01
•
Granted: 1952-08-26
•
Expires: 1963-09-01
Abstract
No abstract record available.
Inventors
- 👤 Jacob C Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:40
CPC Classifications
H; H03; H03B; H03B21/00; H03B21/01; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1420055A
Cited
US1699570A
Cited
US1802760A
Cited
US1813923A
Cited
US1920238A
Cited
US2086601A
Cited
US2140526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |