US2493044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflection wave generator
Assignee: Farnsworth Research Corp
•
Filing: 1946-06-22
•
Granted: 1950-01-03
•
Expires: 1966-06-22
Abstract
No abstract record available.
Inventors
- 👤 Charles L Thorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:01
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/26; H03K4/28; H03K4/32; H03K4/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115877A
Cited
FR806561A
Cited
US2140004A
Cited
US2227075A
Cited
GB493142A
Cited
US2360697A
Cited
US2396476A
Cited
US2373165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |