US3516645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic cleaner
Assignee: Clevite Corp
•
Filing: 1967-08-14
•
Granted: 1970-06-23
•
Expires: 1987-08-14
Abstract
No abstract record available.
Inventors
- 👤 John P Arndt
- 👤 Edmond G Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0238; B06B1/0246; B06B1/0261; B06B2201/00; B06B2201/50; B06B2201/55; B06B2201/70; B06B2201/71
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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |