US2519360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound head mounting
Assignee: Individual
•
Filing: 1945-05-31
•
Granted: 1950-08-22
•
Expires: 1965-05-31
Abstract
No abstract record available.
Inventors
- 👤 Warren R Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:28
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/35; G10K11/352; G10K11/355
Claims Analysis
Total Claims: 0
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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) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |