Calpipe Industries, LLC

19 patents currently held · Updated Nov 15, 2026

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

Ending by 2030

Jan 2027

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 Dec 11, 2026
The maintenance fee for Conduit support assembly (US 10,320,173) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted 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 7,476,817	Connector for Affixing Cables Within Junction Boxes In force Term ends Jan 15, 2027 · High confidence	In force	Term ends Jan 15, 2027	High confidence
US 7,635,816	Connector / Bushing Assembly for Electrical Junction Boxes In force Term ends Feb 18, 2028 · High confidence	In force	Term ends Feb 18, 2028	High confidence
US 7,914,048	Liquid-Tight Coupling Device with Screw-On Ferrule Device and Method of Use In force Term ends Dec 17, 2028 · High confidence	In force	Term ends Dec 17, 2028	High confidence
US 7,897,871	Junction Box with Integrated Connectors for Electrical Wiring In force Term ends Aug 15, 2029 · High confidence	In force	Term ends Aug 15, 2029	High confidence
US 8,129,631	Cover for Conduit Body In force Term ends Oct 19, 2030 · High confidence	In force	Term ends Oct 19, 2030	High confidence
US 8,129,633	Connector Assembly Suited for Wet Locations In force Term ends Nov 5, 2030 · High confidence	In force	Term ends Nov 5, 2030	High confidence
US 8,586,881	Connector Assembly Suited for Wet Locations In force Term ends Dec 17, 2030 · High confidence	In force	Term ends Dec 17, 2030	High confidence
US 8,646,813	Electrical Conduit Connector with Two-Point Engagement In force Term ends May 7, 2032 · High confidence	In force	Term ends May 7, 2032	High confidence
US 8,586,877	Cam Lock Mechanism for Securing a Conduit Cover to a Conduit Body In force Term ends Jul 21, 2032 · High confidence	In force	Term ends Jul 21, 2032	High confidence
US D830,153	Strut In force Term ends Oct 9, 2033 · From the USPTO record	In force	Term ends Oct 9, 2033	From the USPTO record

10 of 19 patents shown.

Pro members see all 19.

Pro members: see all 19 patents

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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