US3259128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear protector from noise and dirt
Assignee: Individual
•
Filing: 1964-06-11
•
Granted: 1966-07-05
•
Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Howard S Leight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:25
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
AN EAR PROTECTOR COMPRISING A TRIPLE AIR-FILLED CYLINDRICAL SECTIONED BODY HAVING A BASE SECTION INCLUDING A SOLID CYLINDRICAL PORTION AND AN AIR-FILLED CYLINDRICAL PORTION, THE SURFACE OF THE END OF SAID SOLID PORTION BEING CONCAVE, AN INTERMEDIATE CYLINDRICAL SECTION OF SMALLER DIAMETER THAN SAID BASE SECTION AND JOINED THERETO BY A CONVEX CURVED PORTION, A TIP SECTION OF SMALLER DIAMETER
Claim 2
Dependent Claim
60 words
AN EAR PROTECTOR COMPRISING A TRIPLE AIR-FILLED CYLINDRICAL SECTIONED BODY HAVING A BASE SECTION INCLUDING A SOLID CYLINDRICAL PORTION AND AN AIR-FILLED CYLINDRICAL PORTION, THE SURFACE OF THE END OF SAID SOLID PORTION BEING CONCAVE, AN INTERMEDIATE CYLINDRICAL SECTION OF SMALLER DIAMETER THAN SAID BASE SECTION AND JOINED THERETO BY A CONVEX CURVED PORTION, A TIP SECTION OF SMALLER DIAMETER
References Cited (Backward Citations)
GB578613A
Cited
US2824558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |