US3307542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lung ventilating equipment
Assignee: Air Shields Inc
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Filing: 1965-06-04
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Granted: 1967-03-07
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Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Christian B Andreasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:36
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0003; A61M16/0009; A61M16/0012; A61M16/0057; A61M16/0081; A61M16/0075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
LUNG VENTILATING EQUIPMENT COMPRISING A SYSTEM ADAPTED TO BE ASSOCIATED WITH A PATIENT''S LUNGS FOR HANDLING THE PATIENT''S INSPIRATORY AND EXPIRATORY GASES AND INCLUDING A BELLOWS FOR RECEIVING SUCH GASES, MEANS PROVIDING FOR COLLAPSE OF THE BELLOWS TO CAUSE GASS TO BE DELIVERED TO THE PATIENT INCLUDING A CHAMBER SURROUNDING THE BELLOWS, A MANUALLY OPERABLE COLLAPSIBLE BAG FOR CONTROLLABLY DELIVERING GAS UNDER PRESSURE TO SAID CHAMBER, MECHANISM AUTOMATICALLY OPERATED BY A TIMING DEVICE FOR CONTROLLABLY DELIVERING GAS UNDER PRESSURE FROM A SOURCE THEREOF TO SAID CHAMBER AND INCLUDING A VALVED PASSAGE FOR CONTROLLABLY CONNECTING SAID CHAMBER TO ATMOSPHERE, A VALVED GAS OVERFLOW FOR DISCHARGING EXCESS GASES FROM SAID SYSTEM INTO SAID PASSAGE FOR ULTIMATE DISCHARGE TO ATMOSPHERE WHEN THE PASSAGE VALVE IS OPEN, AND VALVE MEANS FOR ALTERNATIVELY CONNECTING SAID BAG AND SAID MECHANISM WITH SAID CHAMBER, THE VALVE MEANS INCLUDING VALVE PARTS AND PORTAGE PROVIDING FOR CONNECTING SAID VALVED PASSAGE TO SAID CHAMBER WHEN THE AUTOMATICALLY
Claim 2
Dependent Claim
157 words
LUNG VENTILATING EQUIPMENT COMPRISING A SYSTEM ADAPTED TO BE ASSOCIATED WITH A PATIENT''S LUNGS FOR HANDLING THE PATIENT''S INSPIRATORY AND EXPIRATORY GASES AND INCLUDING A BELLOWS FOR RECEIVING SUCH GASES, MEANS PROVIDING FOR COLLAPSE OF THE BELLOWS TO CAUSE GASS TO BE DELIVERED TO THE PATIENT INCLUDING A CHAMBER SURROUNDING THE BELLOWS, A MANUALLY OPERABLE COLLAPSIBLE BAG FOR CONTROLLABLY DELIVERING GAS UNDER PRESSURE TO SAID CHAMBER, MECHANISM AUTOMATICALLY OPERATED BY A TIMING DEVICE FOR CONTROLLABLY DELIVERING GAS UNDER PRESSURE FROM A SOURCE THEREOF TO SAID CHAMBER AND INCLUDING A VALVED PASSAGE FOR CONTROLLABLY CONNECTING SAID CHAMBER TO ATMOSPHERE, A VALVED GAS OVERFLOW FOR DISCHARGING EXCESS GASES FROM SAID SYSTEM INTO SAID PASSAGE FOR ULTIMATE DISCHARGE TO ATMOSPHERE WHEN THE PASSAGE VALVE IS OPEN, AND VALVE MEANS FOR ALTERNATIVELY CONNECTING SAID BAG AND SAID MECHANISM WITH SAID CHAMBER, THE VALVE MEANS INCLUDING VALVE PARTS AND PORTAGE PROVIDING FOR CONNECTING SAID VALVED PASSAGE TO SAID CHAMBER WHEN THE AUTOMATICALLY
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |