US3204653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas proportioner system
Assignee: Allied Healthcare Products Inc
•
Filing: 1962-02-28
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Granted: 1965-09-07
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Expires: 1982-02-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Hettlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:34
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/12; A61M16/20; A61M16/201; A61M16/202; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A GAS PROPORTIONER SYSTEM, A VESSEL FOR DISPENSING A GASEOUS MIXTURE, MEANS FOR SUPPLYING A PREDETERMINED MIXTURE OF GASES TO SAID VASSEL, INCLUDING TWO OR MORE SOURCES OF DIFFERENT GASES, CONDUIRS CONNECTING SAID SOURCES TO SAID VESSEL, AUTOMATIC MEANS IN SAID CONDUITS FOR CONTROLLING THE FLOW OF GASES FROM THE RESPECTIVE SOURCES WHEREBY THE GASES ARE DELIVERED TO SAID VESSEL IN THE DESIRED PROPORTION, MEANS IN SAID CONDUITS FOR INTERRUPTING THE FLOW OF GASES TO SAID VESSEL, AUTOMATIV MEANS IN SAID CONDUITS FOR PREVENTING A FLOW OF GASES IN THE REVERSE DIRECTION FROM SAID VESSEL AND MEANS FOR ENSURING THAT THE PROPORTIONS OF A PREDETERMINED MIXTURE OF GASES IN SAID
Claim 2
Dependent Claim
111 words
IN A GAS PROPORTIONER SYSTEM, A VESSEL FOR DISPENSING A GASEOUS MIXTURE, MEANS FOR SUPPLYING A PREDETERMINED MIXTURE OF GASES TO SAID VASSEL, INCLUDING TWO OR MORE SOURCES OF DIFFERENT GASES, CONDUIRS CONNECTING SAID SOURCES TO SAID VESSEL, AUTOMATIC MEANS IN SAID CONDUITS FOR CONTROLLING THE FLOW OF GASES FROM THE RESPECTIVE SOURCES WHEREBY THE GASES ARE DELIVERED TO SAID VESSEL IN THE DESIRED PROPORTION, MEANS IN SAID CONDUITS FOR INTERRUPTING THE FLOW OF GASES TO SAID VESSEL, AUTOMATIV MEANS IN SAID CONDUITS FOR PREVENTING A FLOW OF GASES IN THE REVERSE DIRECTION FROM SAID VESSEL AND MEANS FOR ENSURING THAT THE PROPORTIONS OF A PREDETERMINED MIXTURE OF GASES IN SAID
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |