Patent US3421508A successfully refreshed from Google Patents.
US3421508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryosurgical probe
Assignee: Union Manufacturing Co
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Filing: 1966-08-31
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Granted: 1969-01-14
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Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Fred Leonard Nestrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:59
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A CRYOSURGICAL PROBE OF CUPPED FORMATION AND COMPRISING A GENERALLY CYLINDRICAL WALL AND AN END WALL EFFECTIVELY CLOSING ONE AXIAL END OF SAID CYLINDRICAL WALL, THE OTHER END OF SAID CYLINDRICAL WALL BEING OPEN, AND ADAPTER MEANS AT SAID OTHER END FOR ATTACHMENT TO A SUPPLY OF SUPERCOOLED FLUID FLOW, ONE OF SAID WALLS INCLUDING AN OUTWARDLY EXPOSED MEMBRANE OF RELATIVELY SOFTLY COMPLIANT MATERIAL, SAID MEMBRANE BEING INTERNALLY DIRECTLY EXPOSED TO SUPERCOOLED FLUID INTRODUCED VIA SAID OTHER END INTO THE INTERIOR OF SAID PROBE.
Claim 2
Dependent Claim
84 words
A CRYOSURGICAL PROBE OF CUPPED FORMATION AND COMPRISING A GENERALLY CYLINDRICAL WALL AND AN END WALL EFFECTIVELY CLOSING ONE AXIAL END OF SAID CYLINDRICAL WALL, THE OTHER END OF SAID CYLINDRICAL WALL BEING OPEN, AND ADAPTER MEANS AT SAID OTHER END FOR ATTACHMENT TO A SUPPLY OF SUPERCOOLED FLUID FLOW, ONE OF SAID WALLS INCLUDING AN OUTWARDLY EXPOSED MEMBRANE OF RELATIVELY SOFTLY COMPLIANT MATERIAL, SAID MEMBRANE BEING INTERNALLY DIRECTLY EXPOSED TO SUPERCOOLED FLUID INTRODUCED VIA SAID OTHER END INTO THE INTERIOR OF SAID PROBE.
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |