US2699503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomic clock
Assignee: Individual
•
Filing: 1949-04-30
•
Granted: 1955-01-11
•
Expires: 1969-04-30
Abstract
No abstract record available.
Inventors
- 👤 Lyons Harold
- 👤 Benjamin F Husten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26; G; G04; G04F; G04F5/00; G04F5/14
Claims Analysis
Total Claims: 0
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US2559719A
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US2555131A
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US2591257A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |