T-Drill Oy
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Feb 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 Apr 24, 2027The maintenance fee for Device for welding pipe branches and extensions (US 11,794,266) comes due Apr 24, 2027. Unpaid by Oct 25, 2027, it lapses early.
- 1 fee due Jul 21, 2027The maintenance fee for Method and apparatus for shape cutting of a pipe end (US 10,537,948) comes due Jul 21, 2027. Unpaid by Jan 21, 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.
Showing 1 to 4 of 4
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,667,876 | Pipe cutting apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 10,537,948 | Method and apparatus for shape cutting of a pipe end In force · From the USPTO record | In force | From the USPTO record | |
| US 11,794,266 | Device for welding pipe branches and extensions In force · From the USPTO record | In force | From the USPTO record | |
| US 12,715,029 | Method and Device for Perforating a Pipe Wall In force · High confidence | In force | High confidence |
Also on record, not counted in the 4: 10 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.
1 no status recorded