US2519619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic generator
Assignee: Gas Technology Institute
•
Filing: 1944-08-04
•
Granted: 1950-08-22
•
Expires: 1964-08-04
Abstract
No abstract record available.
Inventors
- 👤 John I Yellott
- 👤 Leonard E Savory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:31
CPC Classifications
G; G10; G10K; G10K5/00; G10K5/02; F; F23; F23D; F23D11/00; F23D11/34; Y; Y10; Y10S; Y10S116/00; Y10S116/18; Y10S116/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1515471A
Cited
US1723902A
Cited
US1980171A
Cited
US1890212A
Cited
US2245454A
Cited
US2238668A
Cited
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 |