US3530371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal field-frequency control for impulse gyromagnetic resonance spectrometers
Assignee: Varian Medical Systems Inc
•
Filing: 1968-07-01
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Granted: 1970-09-22
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Expires: 1988-07-01
Abstract
No abstract record available.
Inventors
- 👤 Forrest A Nelson
- 👤 Richard R Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:41
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66; C25D5/00; C25D5/007; G; G01; G01R; G01R33/00; G01R33/20; G01R33/28; G01R33/38; G01R33/389; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/12771; Y10T428/12778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3358222A
Cited
US3461381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |