US3238943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aid breathing system
Assignee: Individual
•
Filing: 1963-06-19
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Granted: 1966-03-08
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Expires: 1983-06-19
Abstract
No abstract record available.
Inventors
- 👤 Holley Edgar Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:56
CPC Classifications
A; A62; A62B; A62B7/00; A62B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A BREATHING APPARATUS FOR USE IN LOW OXYGEN ATMOSPHERS AND THE LIKE COMPRISING A FIRST FACE MASK HAVING TRANSPARENT VIEWING MEANS, MEANS FOR ATTACHING SAID FIRST FACE MASK TO A FIRST PERSON, A COMPRESSED AIR SUPPLY, MEANS FOR CONTROLLING A SUPPLY OF AIR FROM SAID COMPRESSED AIR SUPPLY, MEANS FOR SUPPLYING SAID COMPRESSED AIR SUPPLY TO SAID FIRST FACE MASK, A BREATHING SELECTOR ATTACHED TO SAID FIRST FACE MASK, SAID BREATHING SELECTOR HAVING A PLURALITY OF BRANCHES, EACH OF SAID BRANCHES HAVING MEANS FOR PERMITTING ONLY THE EXHAUST OF EXHALED AIR, FOR DETERMINING SELECTOR HAVING AN ADJUSTABLE VALVING MEANS FOR DETERMINING THROUGH WHICH BRANCH THE AIR WILL FLOW, ONE OF SAID BRANCHES HAVING A PLURALITY OF HOSE CONNECTING MEANS THEREON, A SECOND FACE MASK, MEANS FOR ATTACHING SAID SECOND FACE MASK TO A SECOND PERSON, A HOSE ON SAID SECOND FACE MASK REMOVABLY CONNECTED TO ONE OF SAID HOSE CONNECTING MEANS OF SAID FIRST FACE MASK, WHEREBY SAID VALVING MEANS MAY BE MANIPULATED TO ALLOW THE PASSAGE OF AIR TO SAID SECOND FACE MASK.
Claim 2
Dependent Claim
174 words
A BREATHING APPARATUS FOR USE IN LOW OXYGEN ATMOSPHERS AND THE LIKE COMPRISING A FIRST FACE MASK HAVING TRANSPARENT VIEWING MEANS, MEANS FOR ATTACHING SAID FIRST FACE MASK TO A FIRST PERSON, A COMPRESSED AIR SUPPLY, MEANS FOR CONTROLLING A SUPPLY OF AIR FROM SAID COMPRESSED AIR SUPPLY, MEANS FOR SUPPLYING SAID COMPRESSED AIR SUPPLY TO SAID FIRST FACE MASK, A BREATHING SELECTOR ATTACHED TO SAID FIRST FACE MASK, SAID BREATHING SELECTOR HAVING A PLURALITY OF BRANCHES, EACH OF SAID BRANCHES HAVING MEANS FOR PERMITTING ONLY THE EXHAUST OF EXHALED AIR, FOR DETERMINING SELECTOR HAVING AN ADJUSTABLE VALVING MEANS FOR DETERMINING THROUGH WHICH BRANCH THE AIR WILL FLOW, ONE OF SAID BRANCHES HAVING A PLURALITY OF HOSE CONNECTING MEANS THEREON, A SECOND FACE MASK, MEANS FOR ATTACHING SAID SECOND FACE MASK TO A SECOND PERSON, A HOSE ON SAID SECOND FACE MASK REMOVABLY CONNECTED TO ONE OF SAID HOSE CONNECTING MEANS OF SAID FIRST FACE MASK, WHEREBY SAID VALVING MEANS MAY BE MANIPULATED TO ALLOW THE PASSAGE OF AIR TO SAID SECOND FACE MASK.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |