US2416158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency dividing apparatus
Assignee: General Electric Co
•
Filing: 1942-10-09
•
Granted: 1947-02-18
•
Expires: 1962-10-09
Abstract
No abstract record available.
Inventors
- 👤 John C Coykendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
H; H03; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/12; H03K; H03K25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2050059A
Cited
US2221452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |