Compact Membrane Systems, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
2
Ending by 2030
Oct 2027
Next term end
When these terms end
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 Jan 14, 2027The maintenance fee for Organic Fluid Permeation Through Fluoropolymer Membranes (US 9,079,138) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
- 2 fees due Mar 1 to 3, 2027 · next Mar 1
- 1 fee due Apr 27, 2027The maintenance fee for Combination membrane system for producing nitrogen enriched air (US 9,168,490) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
- 1 fee due Aug 20, 2027The maintenance fee for Gas permeable fluoropolymers and ionomers (US 11,905,350) comes due Aug 20, 2027. Unpaid by Feb 22, 2028, it lapses early.
- 1 fee due Sep 24, 2027The maintenance fee for Amorphous fluorinated copolymer gas separation membranes (US 10,596,527) comes due Sep 24, 2027. Unpaid by Mar 24, 2028, it lapses early.
- 1 fee due Nov 5, 2027The maintenance fee for Thin-Film Composite Membrane and Processes for the Separation of Alkenes from a Gaseous Feed Mixture (US 10,639,591) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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 8,506,815 | Removal of Water from Fluids In force · Medium confidence | In force | Medium confidence | |
| US 8,293,112 | Removal of Water and Methanol from Fluids In force · High confidence | In force | High confidence | |
| US 9,168,490 | Combination membrane system for producing nitrogen enriched air In force · From the USPTO record | In force | From the USPTO record | |
| US 9,079,138 | Organic Fluid Permeation Through Fluoropolymer Membranes In force · High confidence | In force | High confidence | |
| US 9,120,834 | Membrane Separation of Ionic Liquid Solutions In force · High confidence | In force | High confidence | |
| US 10,029,248 | Membrane Separation of Olefin and Paraffin Mixtures In force · High confidence | In force | High confidence | |
| US 9,463,450 | Polymeric acid catalysis In force · From the USPTO record | In force | From the USPTO record | |
| US 10,399,044 | Thin film composite membranes for separation of alkenes from alkanes In force · From the USPTO record | In force | From the USPTO record | |
| US 10,596,527 | Amorphous fluorinated copolymer gas separation membranes In force · From the USPTO record | In force | From the USPTO record | |
| US 10,639,591 | Thin-Film Composite Membrane and Processes for the Separation of Alkenes from a Gaseous Feed Mixture In force · High confidence | In force | High confidence |
Also on record, not counted in the 16: 4 lapsed for an unpaid fee · 5 ended at full term. List them
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.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 pending · 8 no status recorded