Patent US2442825A successfully refreshed from Google Patents.
US2442825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear muff arrangement
Assignee: PREMIUM CAP Co
•
Filing: 1946-05-31
•
Granted: 1948-06-08
•
Expires: 1966-05-31
Abstract
No abstract record available.
Inventors
- 👤 Hyman M Rabushka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:03
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/018; A42B1/0186; A42B1/0188
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2303850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |