Flexsys IP Holdings, LLC
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Feb 2036
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 Mar 10, 2027The maintenance fee for Compounds with Antidegradant and Antifatigue Efficacy and Compositions Including Said Compounds (US 10,407,562) comes due Mar 10, 2027. Unpaid by Sep 10, 2027, it lapses early.
- 1 fee due Apr 1, 2027The maintenance fee for Methods of Making Compounds and Mixtures Having Antidegradant and Antifatigue Efficacy (US 10,428,009) comes due Apr 1, 2027. Unpaid by Oct 1, 2027, it lapses early.
- 2 fees due Aug 20 to 25, 2027 · next Aug 20
- 1 fee due Oct 7, 2027The maintenance fee for Methods of Making Compounds and Mixtures Having Antidegradant and Antifatigue Efficacy (US 10,611,719) comes due Oct 7, 2027. Unpaid by Apr 7, 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 10,011,663 | Vulcanizing Composition Containing Cyclododecasulfur and Improved Cyclododecasulfur Compound In force · High confidence | In force | High confidence | |
| US 10,280,281 | Processes for Forming Vulcanizable Elastomeric Formulations and Vulcanized Elastomeric Articles In force · Low confidence | In force | Low confidence | |
| US 10,570,218 | Vulcanizing Composition Containing Cyclododecasulfur and Improved Cyclododecasulfur Compound In force · High confidence | In force | High confidence | |
| US 11,021,581 | Durable Elastomeric Compositions Employing Cyclododecasulfur as a Vulcanizing Agent In force · Medium confidence | In force | Medium confidence | |
| US 10,160,718 | Methods of Making Compounds Having Antidegradant and Antifatigue Efficacy In force · High confidence | In force | High confidence | |
| US 10,160,845 | Methods of Making Compounds and Mixtures Having Antidegradant and Antifatigue Efficacy In force · High confidence | In force | High confidence | |
| US 10,167,252 | Compounds and Mixtures with Antidegradant and Antifatigue Efficacy and Compositions Inluding Such Compounds In force · High confidence | In force | High confidence | |
| US 10,260,017 | Compounds and Mixtures with Antidegradant and Antifatigue Efficacy and Compositions Including Said Compounds In force · High confidence | In force | High confidence | |
| US 10,287,418 | Compounds with Antidegradant and Antifatigue Efficacy and Compositions Including Said Compounds In force · High confidence | In force | High confidence | |
| US 10,407,562 | Compounds with Antidegradant and Antifatigue Efficacy and Compositions Including Said Compounds In force · High confidence | In force | High confidence |
Also on record, not counted in the 14: 1 patent in force now held by others · 3 lapsed for an unpaid fee. 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.