US2665379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency divider
Assignee: MINSHALL ESTEY ORGAN Inc
•
Filing: 1950-09-08
•
Granted: 1954-01-05
•
Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 George H Hadden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:02
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; G10H5/06; G10H5/07; G10H5/10; H; H03; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/12; Y; Y10; Y10S; Y10S84/00; Y10S84/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2251973A
Cited
US2141343A
Cited
US2277000A
Cited
US2342286A
Cited
US2426179A
Cited
US2419340A
Cited
US2538278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |