Patent US2727508A successfully refreshed from Google Patents.
US2727508A
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Humidifier and catheter unit
Assignee: Air Shields Inc
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Filing: 1954-06-01
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Granted: 1955-12-20
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Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel Y Gibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:24
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/2405; B05B7/2435; A; A61; A61M; A61M1/00; A61M1/71; A61M1/84; A61M16/00; A61M16/10; A61M16/14; A61M16/16; F; F24; F24F; F24F6/00; F24F6/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1266228A
Cited
US2624337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |