Maintenance fees coming due

Quantum-Si Incorporated

10 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 1, 2027. Unpaid by Aug 2, 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 11,712,715	Surface Modification in the Vapor Phase Quantum-Si Incorporated In force Fee due Feb 1, 2027 Lapses if unpaid Aug 2, 2027 Term ends Oct 9, 2040 · High confidence	Quantum-Si Incorporated	In force	Feb 1, 2027	Aug 2, 2027	Term ends Oct 9, 2040	High confidence
US 10,371,634	Optical System and Assay Chip for Probing, Detecting and Analyzing Molecules Quantum-Si Incorporated In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 Term ends Aug 7, 2035 · High confidence	Quantum-Si Incorporated	In force	Feb 6, 2027	Aug 6, 2027	Term ends Aug 7, 2035	High confidence
US 11,719,636	Integrated Device for Temporal Binning of Received Photons Quantum-Si Incorporated In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 Term ends Aug 7, 2035 · High confidence	Quantum-Si Incorporated	In force	Feb 8, 2027	Aug 9, 2027	Term ends Aug 7, 2035	High confidence
US 11,804,499	Optical and Electrical Secondary Path Rejection Quantum-Si Incorporated In force Fee due Apr 30, 2027 Lapses if unpaid Nov 1, 2027 Term ends Dec 20, 2040 · High confidence	Quantum-Si Incorporated	In force	Apr 30, 2027	Nov 1, 2027	Term ends Dec 20, 2040	High confidence
US 11,869,917	Integrated Sensor for Lifetime Characterization Quantum-Si Incorporated In force Fee due Jul 9, 2027 Lapses if unpaid Jan 10, 2028 Term ends Jan 14, 2041 · High confidence	Quantum-Si Incorporated	In force	Jul 9, 2027	Jan 10, 2028	Term ends Jan 14, 2041	High confidence
US 11,879,841	Optical System and Assay Chip for Probing, Detecting and Analyzing Molecules Quantum-Si Incorporated In force Fee due Jul 23, 2027 Lapses if unpaid Jan 24, 2028 Term ends Aug 7, 2035 · High confidence	Quantum-Si Incorporated	In force	Jul 23, 2027	Jan 24, 2028	Term ends Aug 7, 2035	High confidence
US 11,885,744	Sensor for Lifetime Plus Spectral Characterization Quantum-Si Incorporated In force Fee due Jul 30, 2027 Lapses if unpaid Jan 31, 2028 Term ends Jan 13, 2042 · High confidence	Quantum-Si Incorporated	In force	Jul 30, 2027	Jan 31, 2028	Term ends Jan 13, 2042	High confidence
US 10,551,624	Compact Beam Shaping and Steering Assembly Quantum-Si Incorporated In force Fee due Aug 4, 2027 Lapses if unpaid Feb 4, 2028 Term ends Dec 14, 2037 · High confidence	Quantum-Si Incorporated	In force	Aug 4, 2027	Feb 4, 2028	Term ends Dec 14, 2037	High confidence
US 11,959,920	Methods and Compositions for Protein Sequencing Quantum-Si Incorporated In force Fee due Oct 16, 2027 Lapses if unpaid Apr 17, 2028 Term ends Sep 15, 2041 · High confidence	Quantum-Si Incorporated	In force	Oct 16, 2027	Apr 17, 2028	Term ends Sep 15, 2041	High confidence
US 11,970,729	Methods for Nucleic Acid Sequencing Quantum-Si Incorporated In force Fee due Oct 30, 2027 Lapses if unpaid May 1, 2028 Term ends Aug 3, 2036 · High confidence	Quantum-Si Incorporated	In force	Oct 30, 2027	May 1, 2028	Term ends Aug 3, 2036	High confidence

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

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