US3291640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic cleaning process
Assignee: Chemclean Products Corp
•
Filing: 1963-05-27
•
Granted: 1966-12-13
•
Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Livingston Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:05
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE PROCESS OF CLEANING FLUX OXIDE COATED METALLIC ELEMENTS FUSED TO OPEN END CAPILLARY TUBES COMPRISING DEPOSITING SAID TUBES VERTICALLY WITH THEIR OPEN END UPPERMOST, UPON A CONVEYOR; IMMERSING SAID TUBES WHILE ON SAID COVEYOR IN A BATH CONTAINING A SUITABLY FLUID LIQUID; ENERGIZING THE LIQUID BY MEANS OF ULTRASONIC ENERGY THEREBY REPLACING THE AIR OF SAID TUBES WITH SAID LIQUID; CONVEYING SAID LIQUID FILLED TUBES INTO AN ACID BATH ADAPTED
Claim 2
Dependent Claim
71 words
THE PROCESS OF CLEANING FLUX OXIDE COATED METALLIC ELEMENTS FUSED TO OPEN END CAPILLARY TUBES COMPRISING DEPOSITING SAID TUBES VERTICALLY WITH THEIR OPEN END UPPERMOST, UPON A CONVEYOR; IMMERSING SAID TUBES WHILE ON SAID COVEYOR IN A BATH CONTAINING A SUITABLY FLUID LIQUID; ENERGIZING THE LIQUID BY MEANS OF ULTRASONIC ENERGY THEREBY REPLACING THE AIR OF SAID TUBES WITH SAID LIQUID; CONVEYING SAID LIQUID FILLED TUBES INTO AN ACID BATH ADAPTED
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |