US4686354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhalation apparatus
Assignee: BOC Group Ltd
•
Filing: 1986-03-31
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Granted: 1987-08-11
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Expires: 2006-03-31
Abstract
Abstract A composite flexible delivery hose 1 for use with a medical humidifier comprises an inner tubular member 2 around which is spirally wound a heater cable 4. The heater cable 4 includes an outer body 6 of electrically insulating material in which is embedded an electrical resistance heater wire 8, a wire 10 interconnecting temperature sensors arranged one at each end of the hose and a thermoplastic support wire 12.
Inventors
- 👤 Ronald P. Makin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:52
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/1075; A61M16/1085; A61M16/1095; A61M16/08; A61M2205/00; A61M2205/33; A61M2205/3368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A composite, flexible delivery hose for use with a medical humidifier and having temperature sensors arranged one at each end of the hose, said hose comprising an inner flexible tubular member and a heater cable attached to and wound spirally therearound, said heater cable including a first electrical resistance heater wire, a second thermoplastic support wire and a third wire interconnecting said temperature sensors, said first, second and third wires all being imbedded in an outer body of electrically insulating material.
Claim 2
Dependent Claim
81 words
A composite, flexible delivery hose for use with a medical humidifier and having temperature sensors arranged one at each end of the hose, said hose comprising an inner flexible tubular member and a heater cable attached to and wound spirally therearound, said heater cable including a first electrical resistance heater wire, a second thermoplastic support wire and a third wire interconnecting said temperature sensors, said first, second and third wires all being imbedded in an outer body of electrically insulating material.
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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) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |