US2990616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic cutting tool
Assignee: Cavitron Corp
•
Filing: 1955-03-08
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Granted: 1961-07-04
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Expires: 1975-03-08
Abstract
No abstract record available.
Inventors
- 👤 Balamuth Lewis
- 👤 Kuris Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/861; A; A61; A61C; A61C1/00; A61C1/02; A61C1/07; A61C3/00; A61C3/02; A61C3/03; B24; B24B; B24B1/00; B24B1/04; B26; B26D; B26D7/00; B26D7/08; B26D7/086; B29C65/00; B29C65/02; B29C65/08; B29C66/81; B29C66/816; B29C66/8167; B29C66/90; B29C66/95; B29C66/951; B29C66/9512; B29C66/9513; H; H01; H01J; H01J27/00; H01J27/02; H01J27/04; H01J27/06; B29C66/9516; Y; Y10; Y10S; Y10S83/00; Y10S83/956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |