Patent US3768470A successfully refreshed from Google Patents.
US3768470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear protector
Assignee: Individual
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Filing: 1971-07-21
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Granted: 1973-10-30
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Expires: 1991-07-21
Abstract
Abstract An ear protector to reduce the effect of high intensity sound upon the human ear. The protector includes a band or other resilient means extending over, under, or around the head and provided with a soft resilient pod at each end. Each pod is formed of a soft resilient material and has an air cushion portion adapted to fit into and over the opening to the ear canal.
Inventors
- 👤 H Leight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:41
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
91 words
An ear protector comprising: a pair of sound-attenuating pods and means for holding said pods against the ears of a wearer; each pod having a base and tip, said tip including a convexly rounded outer portion for entering the ear canal and an inner portion larger in cross-section than said outer portion for engaging the ear region around the entrance to the ear canal, said inner and outer portions forming a concave junction region along only one side of the tip, the region diametrically opposite said concave junction regioN being convex.
Claim 2
Dependent Claim
91 words
An ear protector comprising: a pair of sound-attenuating pods and means for holding said pods against the ears of a wearer; each pod having a base and tip, said tip including a convexly rounded outer portion for entering the ear canal and an inner portion larger in cross-section than said outer portion for engaging the ear region around the entrance to the ear canal, said inner and outer portions forming a concave junction region along only one side of the tip, the region diametrically opposite said concave junction regioN being convex.
Claim 3
Dependent Claim
48 words
The ear protector described in claim 1 wherein: said pod holding means is constructed to fit in a predetermined orientation on the head of the wearer, and said pods are mounted on said holding means with each concave junction region thereof facing in an upward and rearward direction.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |