Burckhardt Compression AG
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
1
Ending by 2030
Jul 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.
- 3 fees due Jan 11 to 30, 2027 · next Jan 11
- 1 fee due Mar 15, 2027The maintenance fee for Piston ring (US 9,133,933) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
- 1 fee due Apr 8, 2027The maintenance fee for Poppet valve (US 10,436,203) comes due Apr 8, 2027. Unpaid by Oct 8, 2027, it lapses early.
- 1 fee due May 10, 2027The maintenance fee for Linear bearing, and solenoid comprising such a linear bearing (US 9,183,975) comes due May 10, 2027. Unpaid by Nov 10, 2027, it lapses early.
- 1 fee due Jun 26, 2027The maintenance fee for Method and device for monitoring the condition of a piston rod sealing system of a piston compressor (US 11,852,243) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 1 fee due Jul 12, 2027The maintenance fee for Oil Scraper Ring (US 9,234,479) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
- 1 fee due Oct 12, 2027The maintenance fee for Poppet valve for a compressor (US 9,309,878) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has 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 7,815,193 | Dry-running piston rod sealing arrangement, and method for sealing a piston rod using one such arrangement In force · From the USPTO record | In force | From the USPTO record | |
| US 9,234,479 | Oil Scraper Ring In force · High confidence | In force | High confidence | |
| US 9,810,175 | Oil Scraper Ring In force · High confidence | In force | High confidence | |
| US 8,985,588 | Seal arrangement In force · From the USPTO record | In force | From the USPTO record | |
| US 9,183,975 | Linear bearing, and solenoid comprising such a linear bearing In force · From the USPTO record | In force | From the USPTO record | |
| US 9,309,878 | Poppet valve for a compressor In force · From the USPTO record | In force | From the USPTO record | |
| US 9,133,933 | Piston ring In force · From the USPTO record | In force | From the USPTO record | |
| US 10,364,894 | Sealing assembly and method for the operation thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 10,077,842 | Sealing ring In force · From the USPTO record | In force | From the USPTO record | |
| US 10,436,203 | Poppet valve In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 34: 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.
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 · 1 abandoned · 8 no status recorded