US2645768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound generating device
Assignee: Individual
•
Filing: 1949-08-24
•
Granted: 1953-07-14
•
Expires: 1969-08-24
Abstract
No abstract record available.
Inventors
- 👤 Santino Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:45
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1023215A
Cited
US1676455A
Cited
US1729284A
Cited
FR740743A
Cited
US2364485A
Cited
US2429104A
Cited
US2501234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |