US2603744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning mechanism
Assignee: Individual
•
Filing: 1945-09-14
•
Granted: 1952-07-15
•
Expires: 1965-09-14
Abstract
No abstract record available.
Inventors
- 👤 Roland W Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:42
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/16; G; G01; G01S; G01S7/00; G01S7/02; G01S7/03; G01S7/034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1592940A
Cited
GB358917A
Cited
US2206896A
Cited
US2235010A
Cited
US2395928A
Cited
US2433387A
Cited
US2408055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |