US3246254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atomic stabilized frequency source
Assignee: Varian Medical Systems Inc
•
Filing: 1958-02-21
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Granted: 1966-04-12
•
Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 William E Bell
- 👤 Arnold L Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:45
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
IN COMBINATION, A MICROWAVE RESONANT GAS; MEANS FOR OPTICALLY PUMPING THE GAS; MEANS FOR APPLYING A WEAK MAGNETIC FIELD TO THE GAS; MEANS FOR APPLYING ENERGY TO THE GAS THE MAGNETIC FIELD OF WHICH IS PERPENDICULAR TO THAT OF THE WEAK MAGNETIC FIELD AT A FREQUENCY CHARACTERISTIC OF TRANSISTIONS BETWEEN MAGNETIC SUBSTATES MF OF ONE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |