Patent US2980123A successfully refreshed from Google Patents.
US2980123A
Expired / Lapsed
US
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Ultrasonic apparatus
Assignee: Individual
•
Filing: 1955-11-14
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Granted: 1961-04-18
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Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jerome H Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:25
CPC Classifications
B; B05; B05B; B05B17/00; B05B17/04; B05B17/06; B05B17/0607; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; B08B2203/00; B08B2203/02; B08B2203/0288
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738565A
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US2163650A
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US2460919A
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US2484014A
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US2647846A
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FR978290A
Cited
US2612860A
Cited
US2711927A
Cited
US2738173A
Cited
US2814575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |