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Maintenance fees coming due

Relypsa, Inc.

1 maintenance fee comes due on May 10, 2027, in the 12 months from Nov 14, 2026. Unpaid by Nov 10, 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.
PatentTitleHolderStatusFee dueLapses if unpaidExpiresConfidence
US 9,181,364Crosslinked Polyvinylamine, Polyallylamine, and Polyethyleneimine for Use as Bile Acid Sequestrants
In force
Fee due May 10, 2027
Lapses if unpaid Nov 10, 2027
 · High confidence
Relypsa, Inc.In forceMay 10, 2027Nov 10, 2027High confidence
1 of 1 patent 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.
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