US3396286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer assembly for producing ultrasonic vibrations
Assignee: EDWARD G COOK
•
Filing: 1965-01-21
•
Granted: 1968-08-06
•
Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 James W Anderson
- 👤 Heny Steve
- 👤 Bobby L Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:29
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0607; B06B1/0622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2565159A
Cited
US2748369A
Cited
US2914686A
Cited
US2891176A
Cited
US2972068A
Cited
US3209176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |