Clearflow, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Previously recorded as Clear Catheter Systems, Inc. (to 2014)
8
Ending by 2030
Jan 2029
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Feb 15, 2027The maintenance fee for Medical Tube Clearance Device (US 11,724,062) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.
- 1 fee due May 12, 2027The maintenance fee for Medical tube clearance device (US 10,471,189) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
- 1 fee due Jul 30, 2027The maintenance fee for Devices and methods related to medical tubes (US 11,884,505) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 1 fee due Sep 12, 2027The maintenance fee for Clearance system for medical tubes such as surgical drains (US 11,925,745) comes due Sep 12, 2027. Unpaid by Mar 13, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,048,233 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 8,388,759 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 8,951,355 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 10,898,674 | Methods and Devices to Clear Obstructions from Medical Tubes In force · Medium confidence | In force | Medium confidence | |
| US 12,544,533 | Methods and Devices to Clear Obstructions from Medical Tubes In force · Medium confidence | In force | Medium confidence | |
| US 7,951,243 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 10,149,960 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 8,246,752 | Methods and Devices to Clear Obstructions from Medical Tubes In force · High confidence | In force | High confidence | |
| US 9,944,547 | Composition and system for flocculating or settling solids from liquids and methods for using same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,561,974 | Composition and system for flocculating or settling solids from liquids and methods for using same In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 23: 3 lapsed for an unpaid fee · 20 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 pending · 4 no status recorded