Maintenance fees coming due

Crompton Technology Group Limited

16 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 13, 2026. Unpaid by Jun 14, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 11,673,301	Composite Connectors and Methods of Manufacturing the Same Crompton Technology Group, Limited In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Jul 17, 2041 · High confidence	Crompton Technology Group, Limited	In force	Dec 13, 2026	Jun 14, 2027	Term ends Jul 17, 2041	High confidence
US 10,361,017	Electrical Isolator Crompton Technology Group Limited In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Jul 1, 2037 · High confidence	Crompton Technology Group Limited	In force	Jan 23, 2027	Jul 23, 2027	Term ends Jul 1, 2037	High confidence
US 10,415,648	Flexible Coupling Crompton Technology Group Limited In force Fee due Mar 17, 2027 Lapses if unpaid Sep 17, 2027 Term ends Feb 17, 2034 · High confidence	Crompton Technology Group Limited	In force	Mar 17, 2027	Sep 17, 2027	Term ends Feb 17, 2034	High confidence
US 11,761,562	Fibre Reinforced Polymer Composite Pipes Crompton Technology Group Limited In force Fee due Mar 19, 2027 Lapses if unpaid Sep 20, 2027 Term ends Jan 25, 2042 · High confidence	Crompton Technology Group Limited	In force	Mar 19, 2027	Sep 20, 2027	Term ends Jan 25, 2042	High confidence
US 11,794,423	Fibre Coating Apparatus Crompton Technology Group Limited In force Fee due Apr 24, 2027 Lapses if unpaid Oct 25, 2027 Term ends Jul 22, 2039 · High confidence	Crompton Technology Group Limited	In force	Apr 24, 2027	Oct 25, 2027	Term ends Jul 22, 2039	High confidence
US 11,815,133	Composite Shaft Crompton Technology Group Limited In force Fee due May 14, 2027 Lapses if unpaid Nov 15, 2027 Term ends Jan 19, 2041 · High confidence	Crompton Technology Group Limited	In force	May 14, 2027	Nov 15, 2027	Term ends Jan 19, 2041	High confidence
US 10,487,869	Composite Structural Component with Tension/Compression Mechanical Joint Crompton Technology Group Limited In force Fee due May 26, 2027 Lapses if unpaid Nov 26, 2027 Term ends Mar 1, 2038 · High confidence	Crompton Technology Group Limited	In force	May 26, 2027	Nov 26, 2027	Term ends Mar 1, 2038	High confidence
US 11,859,739	Composite Connectors and Methods of Manufacturing the Same Crompton Technology Group Limited In force Fee due Jul 2, 2027 Lapses if unpaid Jan 3, 2028 Term ends Nov 21, 2041 · High confidence	Crompton Technology Group Limited	In force	Jul 2, 2027	Jan 3, 2028	Term ends Nov 21, 2041	High confidence
US 10,527,086	Strut Comprising Composite Cylinder with a Mid-Strut Fitting Crompton Technology Group Limited In force Fee due Jul 7, 2027 Lapses if unpaid Jan 7, 2028 Term ends Jan 10, 2038 · High confidence	Crompton Technology Group Limited	In force	Jul 7, 2027	Jan 7, 2028	Term ends Jan 10, 2038	High confidence
US 11,873,860	Transmission Shaft Crompton Technology Group Limited In force Fee due Jul 16, 2027 Lapses if unpaid Jan 18, 2028 Term ends Mar 27, 2039 · High confidence	Crompton Technology Group Limited	In force	Jul 16, 2027	Jan 18, 2028	Term ends Mar 27, 2039	High confidence
6 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 16 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.