Patent US3834384A successfully refreshed from Google Patents.
US3834384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical mask with adhesive vapor barrier
Assignee: Individual
•
Filing: 1973-05-01
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Granted: 1974-09-10
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Expires: 1993-05-01
Abstract
Abstract The invention provides an improved surgical mask which provides a vapor barrier between the mouth and nostrils which are covered by the mask during the use of the same, and the area proximate the eyes of the user and thus prevents the fogging or clouding of any optical device being used by the user.
Inventors
- 👤 H Raines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
65 words
An improved surgical mask comprising a main body member of a filtering material having upper, lower and side edges, a first pair of securing means spaced from said upper edge and extending laterally from opposite side edges and a second pair of securing means adjacent said lower edge and extending laterally from opposite side edges and an adhesive blocking member extending along said upper edge.
Claim 2
Dependent Claim
65 words
An improved surgical mask comprising a main body member of a filtering material having upper, lower and side edges, a first pair of securing means spaced from said upper edge and extending laterally from opposite side edges and a second pair of securing means adjacent said lower edge and extending laterally from opposite side edges and an adhesive blocking member extending along said upper edge.
Claim 3
Dependent Claim
40 words
An improved surgical mask as set forth in claim 1 and wherein said adhesive vapor blocking member comprises a base member upon which said adhesive member has been deposited, and said base member is secured to said main body member.
Claim 4
Dependent Claim
27 words
An improved surgical mask as set forth in claim 2 and wherein said adhesive vapor blocking member is disposed between said base member and a cover member.
Claim 5
Dependent Claim
21 words
An improved surgical mask member as set forth in claim 3 and wherein said cover member has a low adhesion factor.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |