Hydrotech, Inc.
3 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
0
Ending by 2030
May 2041
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 Oct 16, 2027The maintenance fee for Apparatus and Method for Assembling a Split Sleeve onto a Shaft (US 11,959,517) comes due Oct 16, 2027. Unpaid by Apr 17, 2028, 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 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,703,086 | Apparatus and Method for Assembling a Split Sleeve onto a Shaft In force · High confidence | In force | High confidence | |
| US 11,959,517 | Apparatus and Method for Assembling a Split Sleeve onto a Shaft In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 3 patents in force now held by others · 1 lapsed for an unpaid fee · 33 ended at full term · 1 past the fee grace period. 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
Every application published under this name has become a patent.