Patent US3097643A successfully refreshed from Google Patents.
US3097643A
Expired / Lapsed
US
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Ear-plugs
Assignee: Individual
•
Filing: 1961-08-24
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Granted: 1963-07-16
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Expires: 1981-08-24
Abstract
No abstract record available.
Inventors
- 👤 Santi Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:51
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
AN EAR-PLUG COMPRISING AN APERTURED BASE, A TAB ON SAID BASE FOR MANIPULATION OF THE PLUG, A STEM PROJECTING FROM THE BASE FOR INTRODUCTION INTO THE EAR CHANNEL, AND A PLURALITY OF CIRCUMFERENTIAL AXIALLY-SPACED APERTURED BLADES ON THE STEM TO CONTACT THE WALL OF THE EAR CHANNEL, THE APERTURES OF THE BLADES BEING STAGGERED EACH WITH RESPECT TO THE NEXT, THE WHOLE BEING MADE OF RESILIENT MATERIAL.
Claim 2
Dependent Claim
67 words
AN EAR-PLUG COMPRISING AN APERTURED BASE, A TAB ON SAID BASE FOR MANIPULATION OF THE PLUG, A STEM PROJECTING FROM THE BASE FOR INTRODUCTION INTO THE EAR CHANNEL, AND A PLURALITY OF CIRCUMFERENTIAL AXIALLY-SPACED APERTURED BLADES ON THE STEM TO CONTACT THE WALL OF THE EAR CHANNEL, THE APERTURES OF THE BLADES BEING STAGGERED EACH WITH RESPECT TO THE NEXT, THE WHOLE BEING MADE OF RESILIENT MATERIAL.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |