Patent US3131241A successfully refreshed from Google Patents.
US3131241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making an improved ear plug
Assignee: Individual
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Filing: 1962-03-26
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Granted: 1964-04-28
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Emanuel S Mendelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:45
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A METHOD FOR THE MANUFACTURE OF AN EAR DEVICE SO SHAPED TO FIT AN ENTIRE EAR CANAL, SAID METHOD COMPRISING THE FOLLOWING STEPS; (1) PROVIDING A MOLD, SAID MOLD BEING UNDULATED ALONG THE PERIPHERAL SURFACE AND BEING ROUNDED AT ONE END THEREOF; (2) PLACING A SLEEVE OF NYLON OVER A ROD; (3) COVERING THE SLEEVE OF NYLON WITH A LAYER OF LATEX; (4) POSITIONING THE ROD LONGITUDINALLY ALONG THE CENTER OF THE MOLD WHEREBY ONE END OF THE ROD CONTACTS THE ROUNDED END OF THE MOLD; (5) COVERING THE MOLD WITH A COATING OF LATEX TO FORM A SHELL OF LATEX THEREON, SAID SHELL HAVING THE SHAPE OF THE MOLD; (6) BONDING THE LATEX SHELL TO THE LATEX COVERING THE NYLON SLEEVE AT THE ROUNDED END OF THE MOLD; (7) SLIPPING THE ROD FROM THE NYLON SLEEVE TO FORM A HOLLOW ELONGATED CHANNEL, BONDED BY THE NYLON SLEEVE COVERED WITH LATEX, ALONG THE LONGITUDINAL AXIS OF THE LATEX SHELL; (8) REMOVING THE SHELL OF LATEX FROM THE MOLD.
Claim 2
Independent Claim
168 words
A METHOD FOR THE MANUFACTURE OF AN EAR DEVICE SO SHAPED TO FIT AN ENTIRE EAR CANAL, SAID METHOD COMPRISING THE FOLLOWING STEPS; (1) PROVIDING A MOLD, SAID MOLD BEING UNDULATED ALONG THE PERIPHERAL SURFACE AND BEING ROUNDED AT ONE END THEREOF; (2) PLACING A SLEEVE OF NYLON OVER A ROD; (3) COVERING THE SLEEVE OF NYLON WITH A LAYER OF LATEX; (4) POSITIONING THE ROD LONGITUDINALLY ALONG THE CENTER OF THE MOLD WHEREBY ONE END OF THE ROD CONTACTS THE ROUNDED END OF THE MOLD; (5) COVERING THE MOLD WITH A COATING OF LATEX TO FORM A SHELL OF LATEX THEREON, SAID SHELL HAVING THE SHAPE OF THE MOLD; (6) BONDING THE LATEX SHELL TO THE LATEX COVERING THE NYLON SLEEVE AT THE ROUNDED END OF THE MOLD; (7) SLIPPING THE ROD FROM THE NYLON SLEEVE TO FORM A HOLLOW ELONGATED CHANNEL, BONDED BY THE NYLON SLEEVE COVERED WITH LATEX, ALONG THE LONGITUDINAL AXIS OF THE LATEX SHELL; (8) REMOVING THE SHELL OF LATEX FROM THE MOLD.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |