US3249108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mask for protecting respiratory tract
Assignee: Individual
•
Filing: 1963-12-16
•
Granted: 1966-05-03
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Louis A Terman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/007; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A61F2007/0001; A61F2007/0002; A61F2007/0003; A61F2007/0006; A61F2007/0017; A61F2007/0077; A61F2007/0078; A61F2007/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A MASK FOR PROTECTING THE ORAL AND NASAL AIR PASSAGES OF A WEARER FROM DIRECT CONTACT WITH COLD AIR AND WIND, SAID MASK COMPRISING AIR-PREVIOUS FABRIC TAPERED TOWARD THE ENDS THEREOF AND THEREBY CONFIGURATED TO COVER THE NOSE AND MOUTH OF THE WEARER WITH THE UPPER PORTION OF THE MASK BEING SHAPED TO FOLLOW THE NASO-LABIAL FOLD OF THE WEARER''S FACE, SAID MASK BEING FORMED OF CUP SHAPE SO THAT, WHEN WORN, A CENTRAL PORTION THEREOF IS SPACED OUTWARDLY FROM THE LOWER FRONT PORTION OF THE WEARER''S FACE TO FORM AN AIR POCKET DIRECTLY IN FRONT OF THE MOUTH AND JUST BELOW THE NOSE, SAID MASK BEING IMPERFORATE OVER THE AREA COVERING THE MOUTH AND NOSE, AND HEATING MEANS CARRIED BY SAID AIR-PERVIOUS FABRIC WITHIN SAID AIR POCKET TO HEAT THE AIR DRAWN INTO SAID POCKET BY THE INHALATION OF THE WEARER TO WARM THE AIR BEFORE IT CAN CONTACT SAID AIR PASSAGES.
Claim 2
Dependent Claim
153 words
A MASK FOR PROTECTING THE ORAL AND NASAL AIR PASSAGES OF A WEARER FROM DIRECT CONTACT WITH COLD AIR AND WIND, SAID MASK COMPRISING AIR-PREVIOUS FABRIC TAPERED TOWARD THE ENDS THEREOF AND THEREBY CONFIGURATED TO COVER THE NOSE AND MOUTH OF THE WEARER WITH THE UPPER PORTION OF THE MASK BEING SHAPED TO FOLLOW THE NASO-LABIAL FOLD OF THE WEARER''S FACE, SAID MASK BEING FORMED OF CUP SHAPE SO THAT, WHEN WORN, A CENTRAL PORTION THEREOF IS SPACED OUTWARDLY FROM THE LOWER FRONT PORTION OF THE WEARER''S FACE TO FORM AN AIR POCKET DIRECTLY IN FRONT OF THE MOUTH AND JUST BELOW THE NOSE, SAID MASK BEING IMPERFORATE OVER THE AREA COVERING THE MOUTH AND NOSE, AND HEATING MEANS CARRIED BY SAID AIR-PERVIOUS FABRIC WITHIN SAID AIR POCKET TO HEAT THE AIR DRAWN INTO SAID POCKET BY THE INHALATION OF THE WEARER TO WARM THE AIR BEFORE IT CAN CONTACT SAID AIR PASSAGES.
References Cited (Backward Citations)
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DE627215C
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US2410903A
Cited
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |