Patent US3298371A successfully refreshed from Google Patents.
US3298371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezing probe for the treatment of tissue, especially in neurosurgery
Assignee: Individual
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Filing: 1965-02-11
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Granted: 1967-01-17
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Expires: 1985-02-11
Abstract
No abstract record available.
Inventors
- 👤 Arnold S J Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:23
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/02; F; F25; F25D; F25D3/00; F25D3/10; A61B2018/0212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
APPARATUS FOR NEUROSURGERY COMPRISING AN ELONGATED FREEZING PROBE HAVING AN EXTERNAL TRANSVERSE DIAMETER OF APPROXIMATELY 0.09 INCH AND A THERMALLY CONDUCTIVE FREEZING TIP, MEANS INCLUDING A TEMPERATURE-RESPONSIVE DEVICE EMBEDDED IN THE TIP OF SAID PROBE FOR MEASURING THE TIP TEMPERATURE, MEANS FOR SUPPLYING LIQUID NITROGEN TO SAID PROBE FOR COOLING THE TIP, AND MEANS FOR MINIMIZING GASIFICATION OF THE LIQUID NITROGEN AS IT FLOWS THROUGH SAID PROBE.
Claim 2
Dependent Claim
67 words
APPARATUS FOR NEUROSURGERY COMPRISING AN ELONGATED FREEZING PROBE HAVING AN EXTERNAL TRANSVERSE DIAMETER OF APPROXIMATELY 0.09 INCH AND A THERMALLY CONDUCTIVE FREEZING TIP, MEANS INCLUDING A TEMPERATURE-RESPONSIVE DEVICE EMBEDDED IN THE TIP OF SAID PROBE FOR MEASURING THE TIP TEMPERATURE, MEANS FOR SUPPLYING LIQUID NITROGEN TO SAID PROBE FOR COOLING THE TIP, AND MEANS FOR MINIMIZING GASIFICATION OF THE LIQUID NITROGEN AS IT FLOWS THROUGH SAID PROBE.
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |