US4884296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective face shield
Assignee: Delta Medical Systems Inc
•
Filing: 1988-11-23
•
Granted: 1989-12-05
•
Expires: 2008-11-23
Abstract
Abstract A protective face shield has a shield member of transparent flexible material in the upper corners of which pairs of slits are formed. A headband is threaded through the slits in a manner such that once the headband is donned the shield member may be pulled away from the wearer's face to provide good air circulation. A lower portion of the face shield is contoured inwardly to protect the throat.
Inventors
- 👤 Frank H. Nix, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:42
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/027; Y; Y10; Y10S; Y10S2/00; Y10S2/908; Y10S2/909
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A protective face shield comprising a shield member of transparent flexible material, said member having an upper edge and first and second side edges joining said upper edge to form two corner regions, said shield member further having a bottom edge displaced from the front of said shield member by a sloped portion of said shield member, said bottom edge being formed with a V-shaped notch therein, a pair of slits formed in each of said corner regions of said shield member, a headband slidably threaded through said pairs of slits and having first and second ends, fastening means on said headband at the ends thereof, and second fastening means on either side of said notch adjacent said bottom edge.
Claim 2
Dependent Claim
120 words
A protective face shield comprising a shield member of transparent flexible material, said member having an upper edge and first and second side edges joining said upper edge to form two corner regions, said shield member further having a bottom edge displaced from the front of said shield member by a sloped portion of said shield member, said bottom edge being formed with a V-shaped notch therein, a pair of slits formed in each of said corner regions of said shield member, a headband slidably threaded through said pairs of slits and having first and second ends, fastening means on said headband at the ends thereof, and second fastening means on either side of said notch adjacent said bottom edge.
Claim 3
Dependent Claim
36 words
A protective face shield as claimed in claim 1 wherein said second fastening means comprises a pin mounted on one side of said notch and a matching mating hole on the other side of said notch.
References Cited (Backward Citations)
US1911817A
Cited
US2330442A
Cited
US2541242A
Cited
US2614255A
Cited
US2774970A
Cited
US2965902A
Cited
US3015105A
Cited
US3295143A
Cited
US3828366A
Cited
US4084585A
Cited
US4277847A
Cited
US4621378A
Cited
US4712254A
Cited
US4694507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |