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Fuel System for a Multi-Fuel Internal Combustion Engine

US 11,143,120 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jun 12, 2035 · High confidence

Filed Jun 22, 2020 as application 16/946,439 · Granted Oct 12, 2021
Base term, 20 years from filing
Today
20 years from filing
2015 2035
Clock starts
Jun 12, 2015
Term ends
Jun 12, 2035
Granted
Oct 12, 2021
base term fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
13
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jun 12, 2015, when application 14/738,060, the earliest non-provisional in its chain, was filed (this one was filed Jun 22, 2020)Jun 12, 2035High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 12, 2035High confidence

This family

US 10,221,780In force
Feb 2037
Feb 2037
US 10,697,398In force
Nov 2035
Nov 2035
US 10,393,034In force
Jul 2035
Jul 2035
US 10,167,789In force
Aug 2035
Aug 2035
US 11,530,654In force
Oct 2035
Oct 2035
US 10,697,379In force
Jun 2035
Jun 2035
US 11,492,985In force
Oct 2035
Oct 2035
US 11,143,120this patent
Jun 2035
Jun 2035
8 of 13 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Jun 22, 2020
Reel 53002, frame 469
Collie, Kendall J.; Sarder, Mark J.; Sotiriades, Aleko D.; Dehn, James J.; Jenison, LeighChampion Engine Technology, LLCAssignment of Assignor's Interest
Jun 22, 2020
Reel 53147, frame 877
Champion Engine Technology, LLCChampion Power Equipment, Inc.Assignment of Assignor's Interest
Sep 21, 2023
Reel 64979, frame 458
Champion Engine Technology, LLCChampion Power Equipment, Inc.Nunc Pro Tunc Assignment

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

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