US3511323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic tool with generally undamped mounting of nodal portion of transducer
Assignee: Black and Decker Corp
•
Filing: 1968-02-23
•
Granted: 1970-05-12
•
Expires: 1988-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert H Riley Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1117884A
Cited
US1966446A
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US2818686A
Cited
US2967302A
Cited
US3394274A
Cited
US3368085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |