Citadel Casing Solutions, LLC
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
May 2037
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 Dec 25, 2026The maintenance fee for Wellbore isolation method for sequential treatment of zone sections with and without milling (US 10,329,862) comes due Dec 25, 2026. Unpaid by Jun 25, 2027, it lapses early.
- 2 fees due May 14 to 28, 2027 · next May 14
- 1 fee due Jun 26, 2027The maintenance fee for Method for isolation of borehole pressure while performing a borehole operation in a pressure isolated borehole zone (US 11,851,960) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 2 fees due Sep 5, 2027
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 10,273,769 | Running Tool for Recess Mounted Adaptive Seat Support for an Isolating Object for Borehole Treatment In force · High confidence | In force | High confidence | |
| US 10,287,835 | Tubular Recess or Support Mounted Isolation Support for an Object for Formation Pressure Treatment In force · High confidence | In force | High confidence | |
| US 10,329,862 | Wellbore isolation method for sequential treatment of zone sections with and without milling In force · From the USPTO record | In force | From the USPTO record | |
| US 10,738,563 | Treatment apparatus with flowback feature In force · From the USPTO record | In force | From the USPTO record | |
| US 11,459,874 | Shoe track assembly system and method of use In force · From the USPTO record | In force | From the USPTO record | |
| US 12,091,966 | Shoe track assembly system and method of use In force · From the USPTO record | In force | From the USPTO record | |
| US 12,692,783 | Shoe Track Assembly System and Method of Use In force · Low confidence | In force | Low confidence | |
| US 11,408,522 | Check valve In force · From the USPTO record | In force | From the USPTO record | |
| US 11,478,837 | Method and system for fabrication of a metal cup for creating an annular seal within a wellbore In force · From the USPTO record | In force | From the USPTO record | |
| US 11,828,129 | Plug container, method and apparatus In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 25: 4 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.