Gunderson LLC
2 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.
10
Ending by 2030
Jan 2027
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 Dec 23, 2026The maintenance fee for Railroad car for carrying motor vehicles (US 9,061,687) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 2 fees due Jan 18 to 25, 2027 · next Jan 18
- 1 fee due Feb 1, 2027The maintenance fee for Hopper Railroad Car Having Top Hatch Cover Assembly (US 11,713,061) comes due Feb 1, 2027. Unpaid by Aug 2, 2027, it lapses early.
- 3 fees due May 3 to 21, 2027 · next May 3
- 1 fee due Jun 12, 2027The maintenance fee for Railcar for transport of steel coils with removable bi-level roof (US 11,840,268) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
- 1 fee due Jul 23, 2027The maintenance fee for Autorack cars (US 11,878,724) comes due Jul 23, 2027. Unpaid by Jan 24, 2028, it lapses early.
- 2 fees due Aug 18, 2027
- 1 fee due Sep 29, 2027The maintenance fee for Protective structure for top of tank car (US 9,296,398) comes due Sep 29, 2027. Unpaid by Mar 29, 2028, it lapses early.
Recent changes
- 3 of the patents on this record were granted since Aug 17, 2026
- 1 term has ended since Aug 17, 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 7,654,206 | Container support casting for corner of container-carrying well car In force · From the USPTO record | In force | From the USPTO record | |
| US 7,546,808 | Railroad car with lightweight center beam structure In force · From the USPTO record | In force | From the USPTO record | |
| US 7,607,396 | Container car side sills In force · From the USPTO record | In force | From the USPTO record | |
| US 7,861,659 | Lightweight hopper car with through center sill In force · From the USPTO record | In force | From the USPTO record | |
| US 7,806,058 | Tank car stub sill attachment In force · From the USPTO record | In force | From the USPTO record | |
| US 7,856,931 | Center sill for railroad freight car In force · From the USPTO record | In force | From the USPTO record | |
| US 7,757,610 | Shortened container well In force · From the USPTO record | In force | From the USPTO record | |
| US 9,174,656 | Insulative railway boxcar In force · From the USPTO record | In force | From the USPTO record | |
| US 7,896,140 | Handbrake linkage for a railroad freight car In force · From the USPTO record | In force | From the USPTO record | |
| US 8,177,461 | Transport and storage of wheelsets In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 49: 2 patents in force now held by others · 2 lapsed for an unpaid fee · 44 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.
4 pending · 10 no status recorded