US2476224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear protector with adjustable anchoring means
Assignee: Individual
•
Filing: 1944-09-12
•
Granted: 1949-07-12
•
Expires: 1964-09-12
Abstract
No abstract record available.
Inventors
- 👤 Maurice C Rosenblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832422A
Cited
US1279396A
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GB239478A
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GB365962A
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US1893143A
Cited
GB428733A
Cited
US2312534A
Cited
US2377739A
Cited
US2361963A
Cited
US2430229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |