US2832335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial respiration apparatus
Assignee: CONITECH Ltd
•
Filing: 1953-10-02
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Granted: 1958-04-29
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Expires: 1973-10-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Huxley
- 👤 Nelson G Kling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:43
CPC Classifications
A; A61; A61H; A61H31/00; A61H31/004; A61H31/005; A61H31/006; A61H2201/00; A61H2201/12; A61H2201/1238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305997A
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US1154811A
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US2299160A
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US2408136A
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US2512116A
Cited
US2581893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |