Maintenance fees coming due

Copeland LP

128 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 4, 2026. Unpaid by Jun 4, 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 10,312,798	Power Factor Correction Circuits and Methods Including Partial Power Factor Correction Operation for Boost and Buck Power Converters Copeland LP In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Apr 13, 2037 · High confidence	Copeland LP	In force	Dec 4, 2026	Jun 4, 2027	Term ends Apr 13, 2037	High confidence
US 10,315,495	System and Method of Controlling Compressor, Evaporator Fan, and Condenser Fan Speeds During a Battery Mode of a Refrigeration System for a Container of a Vehicle Copeland LP In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Jun 28, 2037 · High confidence	Copeland LP	In force	Dec 11, 2026	Jun 11, 2027	Term ends Jun 28, 2037	High confidence
US 10,320,322	Switch Actuation Measurement Circuit for Voltage Converter Copeland LP In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Apr 13, 2037 · High confidence	Copeland LP	In force	Dec 11, 2026	Jun 11, 2027	Term ends Apr 13, 2037	High confidence
US 9,057,270	Compressor Including Suction Baffle Copeland LP In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends Nov 29, 2033 · High confidence	Copeland LP	In force	Dec 16, 2026	Jun 16, 2027	Term ends Nov 29, 2033	High confidence
US 9,057,549	System And Method For Monitoring Compressor Floodback Copeland LP In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends Oct 7, 2028 · High confidence	Copeland LP	In force	Dec 16, 2026	Jun 16, 2027	Term ends Oct 7, 2028	High confidence
US 10,323,638	Variable Volume Ratio Compressor Copeland LP In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Mar 19, 2035 · High confidence	Copeland LP	In force	Dec 18, 2026	Jun 21, 2027	Term ends Mar 19, 2035	High confidence
US 10,323,639	Variable Volume Ratio Compressor Copeland LP In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Mar 19, 2035 · High confidence	Copeland LP	In force	Dec 18, 2026	Jun 21, 2027	Term ends Mar 19, 2035	High confidence
US 10,323,867	Rooftop Liquid Desiccant Systems and Methods Copeland LP In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jan 30, 2036 · High confidence	Copeland LP	In force	Dec 18, 2026	Jun 21, 2027	Term ends Jan 30, 2036	High confidence
US 11,680,568	Compressor Oil Management System Copeland LP In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Nov 11, 2038 · High confidence	Copeland LP	In force	Dec 20, 2026	Jun 21, 2027	Term ends Nov 11, 2038	High confidence
US 10,328,771	System and Method of Controlling an Oil Return Cycle for a Refrigerated Container of a Vehicle Copeland LP In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Jan 13, 2038 · High confidence	Copeland LP	In force	Dec 25, 2026	Jun 25, 2027	Term ends Jan 13, 2038	High confidence
118 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 128 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.