Patent US4944039A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4944039A Expired / Lapsed US ⏱️ 0.0 years remaining

Protective mask

Assignee: Individual
•
Filing: 1989-05-26
•
Granted: 1990-07-31
•
Expires: 2009-05-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Described herein is a protective face mask attachable to glasses. The mask comprises a thin frame generally formed to cross transversely over the bridge of the nose, below the eyes and across the cheeks of the user; a protective cover attached to the frame and extending freely therefrom to hang in front of the nose and mouth of the user; and attachment hooks for attaching the frame to the glasses.

Inventors

  • 👤 Ursula Dietrich

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 01:15
CPC Classifications
G; G02; G02C; G02C11/00; A; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1161; A41D13/1184; A61; A61F; A61F9/00; A61F9/02; A61F9/029

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 101 words
A protective face mask attachable t glasses said mask comprising: a thin frame generally formed to cross transversely over the bridge of the nose, below the eyes and across the cheeks of the user; a protective cover attached to said frame and extending freely therefrom to hand in front of the nose and mouth of the user; and attachment means for attaching said frame to said glasses, said attachment means being arms, each arm having a first end and a second end, said first end being rotatably attached to said frame, said second end being attachable by hooking to said glasses.
Claim 2
Dependent Claim 101 words
A protective face mask attachable t glasses said mask comprising: a thin frame generally formed to cross transversely over the bridge of the nose, below the eyes and across the cheeks of the user; a protective cover attached to said frame and extending freely therefrom to hand in front of the nose and mouth of the user; and attachment means for attaching said frame to said glasses, said attachment means being arms, each arm having a first end and a second end, said first end being rotatably attached to said frame, said second end being attachable by hooking to said glasses.
Claim 3
Dependent Claim 26 words
The protective face mask of claim 1 wherein said frame is plastically deformable so that it may be bent to the shape of the user's face.
Claim 4
Dependent Claim 52 words
The protective face mask of claim 1 wherein said frame is preformed to the general configuration of a human nose bridge and cheek bones so said frame may rest closely thereto and below the eyes of the user, said frame being plastically deformable for adjustment of said frame shape for different users.
Claim 5
Dependent Claim 16 words
The protective face mask of claim 1 wherein said cover is detachably affixed to said frame.
Claim 6
Dependent Claim 16 words
The protective face mask of claim 2 wherein said cover is detachably affixed to said frame.
Claim 7
Dependent Claim 18 words
The protective face mask of claim 1 wherein said cover is made from a very thin transparent material.
Claim 8
Dependent Claim 14 words
The protective face mask of claim 1 wherein said cover is impervious to moisture.
Claim 9
Dependent Claim 14 words
The protective face mask of claim 6 wherein said cover is impervious to moisture.
Claim 10
Dependent Claim 29 words
The protective face mask of claim 1 wherein said frame extends transversely across the nose of the user and bends about the sides of the face of the user.
Claim 11
Dependent Claim 30 words
The protective face mask of claim 1 wherein said protective cover is generally U shaped, the base of said U being in the vicinity of the chin of the user.
Claim 12
Dependent Claim 20 words
The protective face mask of claim 1 wherein said mask extends around the sides of the face of the user.
Claim 13
Dependent Claim 22 words
The protective face mask of claim 1 wherein said frame is made of metal and wherein said cover is made of plastic.
Claim 14
Dependent Claim 44 words
The protective face mask of claim 9 wherein the frame has two ends which lie opposite each other and which rest on the sides of the face of the user, said arms being attached at their first ends to said ends of said frame.
Claim 15
Dependent Claim 111 words
A protective face mask attachable to glasses said mask comprising: a plastically deformable thin frame generally formed to cross transversely over the bridge of the nose, below the eyes and across the cheeks of the user; a clear plastic protective cover detachably attached to said frame and extending freely therefrom to hang in front of the nose and mouth of the user; and attachment means for attaching said frame to said glasses, said attachment means being arms, each arm having a first end and a second end, said first end being rotatably attached to said frame, said second end having clips so that said arms may be clipped to said glasses.
Claim 16
Dependent Claim 111 words
A protective face mask attachable to glasses said mask comprising: a plastically deformable thin frame generally formed to cross transversely over the bridge of the nose, below the eyes and across the cheeks of the user; a clear plastic protective cover detachably attached to said frame and extending freely therefrom to hang in front of the nose and mouth of the user; and attachment means for attaching said frame to said glasses, said attachment means being arms, each arm having a first end and a second end, said first end being rotatably attached to said frame, said second end having clips so that said arms may be clipped to said glasses.

References Cited (Backward Citations)

US1279884A Cited
US1582164A Cited
GB513750A Cited
DE688227C Cited
US2669717A Cited
US2774970A Cited
US3991753A Cited
US4701965A Cited
US4843643A Cited
US4821340A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-07-30 1994-01-29 1994-07-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-07-30 1998-01-29 1998-07-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-07-30 2002-01-29 2002-07-31 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag