US2607568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller type sonic generator
Assignee: SONIC RES CORP
•
Filing: 1950-08-16
•
Granted: 1952-08-19
•
Expires: 1970-08-16
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Seavey
- 👤 Caperton B Horsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
G; G10; G10K; G10K9/00; G10K9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1120653A
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US1148294A
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US1189795A
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US1102619A
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FR452715A
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US1125083A
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US1139233A
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US1441402A
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US2163649A
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US2170178A
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US2258630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |