US3451260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ultrasonic scanning using an elliptic reflecting system
Assignee: United States Department of Health and Human Services
•
Filing: 1966-03-23
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Granted: 1969-06-24
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Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Thurstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:29
CPC Classifications
A; A61; A61B; A61B8/00; G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3251219A
Cited
US3262307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |