Viking Pump, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
2
Ending by 2030
Jul 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 Nov 30, 2026The maintenance fee for Double seal lubricated packing gland and rotating sleeve (US 11,662,027) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 1 fee due Jan 18, 2027The maintenance fee for Pump gland with rotary dynamic seal (US 11,703,063) comes due Jan 18, 2027. Unpaid by Jul 19, 2027, it lapses early.
- 1 fee due Jun 24, 2027The maintenance fee for Idler gear for positive displacement gear pump (US 10,514,034) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
Recent changes
- 2 of the patents on this record were 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 7,793,416 | Methods for hardening pump casings In force · From the USPTO record | In force | From the USPTO record | |
| US 8,070,943 | Pump system for deep fryers using trans-fat-free cooking oil In force · From the USPTO record | In force | From the USPTO record | |
| US 8,231,364 | Electric heating and temperature control for process pumps In force · From the USPTO record | In force | From the USPTO record | |
| US 9,683,564 | Internal gear pump with improved communication between inlet and idler and between inlet and rotor In force · From the USPTO record | In force | From the USPTO record | |
| US 11,566,616 | Pump shaft packing gland and bushing In force · From the USPTO record | In force | From the USPTO record | |
| US 10,514,034 | Idler gear for positive displacement gear pump In force · From the USPTO record | In force | From the USPTO record | |
| US 10,760,685 | Pump shaft packing gland and bushing In force · From the USPTO record | In force | From the USPTO record | |
| US 11,662,027 | Double seal lubricated packing gland and rotating sleeve In force · From the USPTO record | In force | From the USPTO record | |
| US 11,168,794 | Double seal lubricated packing gland and rotating sleeve In force · From the USPTO record | In force | From the USPTO record | |
| US 11,204,032 | High pressure pumping system In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 18: 9 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.
10 no status recorded