Delafield Corporation
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
Jun 2028
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 Sep 1, 2027The maintenance fee for Metal hose fitting and flanged insert that safely conducts high velocity fluids/gases up to Mach 1 (US 9,273,810) comes due Sep 1, 2027. Unpaid by Mar 1, 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 6 of 6
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,909,091 | Apparatus having improved interlocking units for flexibly restraining service loops in an oil derrick to prevent entangling of the loops In force · From the USPTO record | In force | From the USPTO record | |
| US 8,016,028 | Apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops In force · From the USPTO record | In force | From the USPTO record | |
| US 8,016,029 | Apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops In force · From the USPTO record | In force | From the USPTO record | |
| US 7,918,270 | Apparatus for flexibly restraining service loops in an oil derrick to prevent entangling of the loops In force · From the USPTO record | In force | From the USPTO record | |
| US 8,356,660 | Apparatus having spaced apart and offset ladder rungs for interlocking and flexibly restraining service loops in an oil derrick to prevent entangling of the loops In force · From the USPTO record | In force | From the USPTO record | |
| US 9,273,810 | Metal hose fitting and flanged insert that safely conducts high velocity fluids/gases up to Mach 1 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
Every application published under this name has become a patent.