US1915282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound record and composition of same
Assignee: DURIUM PRODUCTS Corp
•
Filing: 1929-04-02
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Granted: 1933-06-27
•
Expires: 1949-04-02
Abstract
No abstract record available.
Inventors
- 👤 Hal T Beans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:50
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68; G11B3/70; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964
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) | 1936-06-26 | 1936-12-26 | 1937-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-06-26 | 1940-12-26 | 1941-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-06-26 | 1944-12-26 | 1945-06-27 | $7700.00 | Window Closed / Lapsed |