Edwards Limited
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.
45
Ending by 2030
Dec 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 Nov 28, 2026The maintenance fee for Vacuum pumping and abatement system (US 10,300,433) comes due Nov 28, 2026. Unpaid by May 28, 2027, it lapses early.
- 4 fees due Dec 2 to 23, 2026 · next Dec 2
- 4 fees due Jan 2 to 23, 2027 · next Jan 2
- 3 fees due Feb 4 to 28, 2027 · next Feb 4
- 4 fees due Mar 5 to 19, 2027 · next Mar 5
- 1 fee due Apr 27, 2027The maintenance fee for Chemical vapour deposition apparatus (US 9,169,555) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
- 3 fees due May 5 to 21, 2027 · next May 5
- 4 fees due Jun 12 to 24, 2027 · next Jun 12
- 4 fees due Jul 2 to 30, 2027 · next Jul 2
- 1 fee due Aug 16, 2027The maintenance fee for Vacuum pump (US 9,261,099) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
- 8 fees due Sep 1 to 29, 2027 · next Sep 1
- 4 fees due Oct 12 to 30, 2027 · next Oct 12
- 4 fees due Nov 7 to 10, 2027 · next Nov 7
Recent changes
- 6 of the patents on this record were granted since Aug 16, 2026
- 4 terms have ended 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 7,638,106 | Method of treating a gas stream In force · From the USPTO record | In force | From the USPTO record | |
| US 7,850,261 | Pump enclosure In force · From the USPTO record | In force | From the USPTO record | |
| US 7,867,312 | Trap device In force · From the USPTO record | In force | From the USPTO record | |
| US 9,903,378 | Method of operating a pumping system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,819,635 | Vacuum pump with a continuous ignition source In force · From the USPTO record | In force | From the USPTO record | |
| US 8,224,474 | Method of controlling operation of a processing system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,753,095 | Pumping system and method of operation In force · From the USPTO record | In force | From the USPTO record | |
| US 7,815,845 | Method of degassing molten metal In force · From the USPTO record | In force | From the USPTO record | |
| US 7,824,637 | Apparatus for treating a gas stream In force · From the USPTO record | In force | From the USPTO record | |
| US 7,914,265 | Evacuation of a load lock enclosure In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 221: 1 patent in force now held by others · 60 lapsed for an unpaid fee · 64 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.
15 pending · 8 abandoned · 77 no status recorded