Patent US1464729A successfully refreshed from Google Patents.
US1464729A
Expired / Lapsed
US
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Method of and means for production of sonorous vibrations
Assignee: Individual
•
Filing: 1917-10-06
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Granted: 1923-08-14
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Expires: 1937-10-06
Abstract
No abstract record available.
Inventors
- 👤 Melvin L Severy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:12
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/03; G10H3/08
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) | 1926-08-13 | 1927-02-12 | 1927-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-08-13 | 1931-02-12 | 1931-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-08-13 | 1935-02-12 | 1935-08-14 | $7700.00 | Window Closed / Lapsed |