Evolution Oil Tools Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Sep 2031
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 22, 2027The maintenance fee for Dual tubing string adaptor (US 11,732,541) comes due Feb 22, 2027. Unpaid by Aug 23, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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.
Showing 1 to 8 of 8
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,030,458 | Anchor for a tubing string and method In force · From the USPTO record | In force | From the USPTO record | |
| US 9,494,019 | Anchor for a tubing string and method In force · From the USPTO record | In force | From the USPTO record | |
| US 11,549,326 | Drive system for tubing rotator In force · From the USPTO record | In force | From the USPTO record | |
| US 11,732,541 | Dual tubing string adaptor In force · From the USPTO record | In force | From the USPTO record | |
| US 12,139,990 | Dual string hanger assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 12,084,938 | Tubing hanger with tensioner mechanism In force · From the USPTO record | In force | From the USPTO record | |
| US 12,276,169 | Tubing hanger and wellhead assembly with tubing hanger In force · From the USPTO record | In force | From the USPTO record | |
| US 12,234,710 | Drive assembly for a well site In force · From the USPTO record | In force | From the USPTO record |
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.
1 pending