Patent US3477434A successfully refreshed from Google Patents.
US3477434A
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Cryosurgical apparatus
Assignee: Cvi Corp
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Filing: 1965-06-02
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Granted: 1969-11-11
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Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Charles B Hood Jr
- 👤 Ira W Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:33
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/02; A; A61; A61B; A61B18/00; A61B18/02; A61B2018/00005; A61B2018/00041; A61B2018/0231; A61B2018/0262; A61B2018/0268; A61B2018/0281; A61B2018/0287; F25B2309/00; F25B2309/02; F25B2309/021; F25B2309/022
Claims Analysis
Total Claims: 0
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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) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |