Patent US3295538A successfully refreshed from Google Patents.
US3295538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system cleaner
Assignee: Individual
•
Filing: 1963-10-18
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Granted: 1967-01-03
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence B Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:10
CPC Classifications
F; F25; F25B; F25B45/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
177 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A PRESSURE AND SOLUTION RECLAIMING TANK, A CLEANING SOLUTION TANK ADAPTED TO CONTAIN CLEANING SOLUTION, A PRESSURE LINE EXTENDING FROM THE RECLAMATION TANK, A DRIER IN COMMUNICATION WITH THE PRESSURE LINE AND HAVING AN OUTLET PIPE ADAPTED TO BE CONNECTED TO ONE END OF A SYSTEM TO BE CLEANED, A FILTER HAVING AN INLET PIPE ADAPTED TO BE CONNECTED TO THE OTHER END OF THE SYSTEM TO BE CLEANED, SAID FILTER HAVING AN OUTLET PIPE ENTERING THE UPPER PART OF THE SOLUTION TANK ON A LEVEL ABOVE THE SOLUTION THEREIN AND TERMINATING IN A DOWNWARDLY FACING SPRAY HEAD, A VERTICAL PIPE CONNECTED AT ITS LOWER END TO THE LOWER PART OF THE SOLUTION TANK BELOW THE SOLUTION LEVEL THEREIN, SAID VERTICAL PIPE BEING CONNECTED AT ITS UPPER END TO A HORIZONTAL PIPE PORTION ENTERING THE UPPER PART OF THE RECLAMATION TANK AND TERMINATING IN A DOWN PIPE HAVING AN OPEN LOWER END NEAR THE BOTTOM OF THE RECLAMATION TANK, AND A SOURCE OF PRESSURE OPERATIVELY CONNECTED TO THE PRESSURE LINE.
References Cited (Backward Citations)
US2312091A
Cited
US2835261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |