Field Controls, LLC
2 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 4 name spellings.
5
Ending by 2030
Nov 2026
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 Feb 20, 2027The maintenance fee for Vent proving system (US 10,386,093) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
- 1 fee due Jul 30, 2027The maintenance fee for Flue Damper with a Drainage Port (US 11,885,493) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 1 fee due Oct 26, 2027The maintenance fee for Whole house ventilation system (US 9,322,568) comes due Oct 26, 2027. Unpaid by Apr 26, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
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 7,757,686 | Vent assembly for combustion gases generated by an appliance In force · From the USPTO record | In force | From the USPTO record | |
| US 7,484,934 | Method and apparatus for propelling an intercepted fluid In force · From the USPTO record | In force | From the USPTO record | |
| US 8,113,823 | Apparatus and method for controlling a damper in a gas-fired appliance In force · From the USPTO record | In force | From the USPTO record | |
| US 10,386,093 | Vent proving system In force · From the USPTO record | In force | From the USPTO record | |
| US 11,262,102 | Vent proving system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,322,568 | Whole house ventilation system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,828,111 | Collapsible filter In force · From the USPTO record | In force | From the USPTO record | |
| US 9,958,184 | Vent proving system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,581,355 | Motor/Damper Assembly for Fuel-Fired Water Heater In force · High confidence | In force | High confidence | |
| US 10,161,631 | Self-powered damper system In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 19: 2 patents in force now held by others · 1 lapsed for an unpaid fee · 22 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.
2 pending · 6 no status recorded