Cranemasters, Inc.

11 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Sep 2036

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 3, 2027
The maintenance fee for Tank Car Lifting Apparatus (US 10,577,226) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.

Which patents, and when each one lapses · Pro

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.

Patent	Title	Status	Expires	Confidence
US D930,052	Lifting Arm In force Term ends Sep 7, 2036 · High confidence	In force	Term ends Sep 7, 2036	High confidence
US D931,342	Lifting Arm In force Term ends Sep 7, 2036 · High confidence	In force	Term ends Sep 7, 2036	High confidence
US 10,150,651	Tank Car Lifting Apparatus In force Term ends Jan 18, 2037 · High confidence	In force	Term ends Jan 18, 2037	High confidence
US 10,577,226	Tank Car Lifting Apparatus In force Term ends Jan 18, 2037 · High confidence	In force	Term ends Jan 18, 2037	High confidence
US 11,325,814	Tank Car Lifting Apparatus In force Term ends Jan 18, 2037 · High confidence	In force	Term ends Jan 18, 2037	High confidence
US 11,530,117	Tank Car Lifting Apparatus In force Term ends Jan 18, 2037 · High confidence	In force	Term ends Jan 18, 2037	High confidence
US 12,780,616	Tank Car Lifting Apparatus In force Term ends Jan 18, 2037 · High confidence	In force	Term ends Jan 18, 2037	High confidence
US D967,592	Lifting arm In force Term ends Oct 18, 2037 · From the USPTO record	In force	Term ends Oct 18, 2037	From the USPTO record
US D968,745	Lifting arm In force Term ends Nov 1, 2037 · From the USPTO record	In force	Term ends Nov 1, 2037	From the USPTO record
US D1,004,901	Lifting Apparatus In force Term ends Nov 14, 2038 · High confidence	In force	Term ends Nov 14, 2038	High confidence

10 of 11 patents shown.

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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.

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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 pending

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