US1225422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear-protecting device.
Assignee: Individual
•
Filing: 1917-02-07
•
Granted: 1917-05-08
•
Expires: 1937-02-07
Abstract
No abstract record available.
Inventors
- 👤 Michael Feher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:27
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/018; A42B1/0186; A42B1/0188; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12
Claims Analysis
Total Claims: 0
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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) | 1920-05-07 | 1920-11-06 | 1921-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-05-07 | 1924-11-06 | 1925-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-05-07 | 1928-11-06 | 1929-05-08 | $7700.00 | Window Closed / Lapsed |