Patent US493726A successfully refreshed from Google Patents.
Patent US3234940A successfully refreshed from Google Patents.
US3234940A
Expired / Lapsed
US
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Retention for quick donning mask
Assignee: TEXACE Corp A CORP OF TEX
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Filing: 1962-09-17
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Granted: 1966-02-15
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Jr William D Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:28
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/08; A62B18/084
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
224 words
AN INDIVIDUALLY FITTING QUICK DONNING MASK ASSEMBLY FOR BREATHING MASKS ADAPTED TO BE CARRIED IN PART BY THE HEAD AND CHEST WHEN NOT IN USE FOR BREATHING, SAID ASSEMBLY COMPRISING A MASK, A HEAD HARNESS INCLUDING EAR PIECES LOCATED WHEN IN USE ONE ADJACENT EACH EAR, A SUBSTANTIALLY RIGID LOCKING BAR ELEMENT AT LEAST PARTIALLY OVERLYING SAID MASK AND HAVING AT ONE END OF SAID BAR ELEMENT A PAIR OF LEGS STRADDLING SAID MASK, SAID LEGS HAVING ENDS ADJACNET THE MASK AND A FIRST PIVOTAL CONNECTION BETWEEN SAID MASK AND SAID ENDS OF THE LEGS, A ROD IN FIXED TRANSVERSE POSITION ON THE BAR ELEMENT ADJACENT THE OTHER END OF SAID BAR ELEMENT, FREE ENDS OF SAID ROD ON RESPECTIVE SIDES OF THE BAR ELEMENTS SPACED FROM EACH OTHER A DISTANCE GREATER THAN THE DISTANCE BETWEEN SAID ENDS OF THE LEGS AND SUBSTANTIALLY EQUAL TO THE DISTANCE BETWEEN OUTERMOST EDGES OF SAID MASK AND EXTENDING TO LOCATIONS SUBSTANTIALLY IN FORE AND AFT ALIGNMENT WITH RESPECTIVE EAR PIECE, A FLEXIBLE CONNECTION ON EACH SIDE HAVING AT ONE END A REMOVABLE PIVOTAL ATTACHMENT TO THE RESPECTIVE EAR PIECE AND AT THE OTHER END A REMOVABLE PIVOTAL CONNECTION TO THE RESPECTIVE FREE END OF SAID ROD, SAID ROD AND THE FLEXIBLE CONNECTIONS ON EACH SIDE BEING ADAPED TO MAINTAIN THE POSITION OF SAID MASK ON THE CHEST.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |