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US

Guided Surface Wave Transmission of Multiple Frequencies in a Lossy Media

US 9,882,397 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jun 20, 2036 · High confidence

Filed Sep 8, 2015 as application 14/847,606 · Granted Jan 30, 2018
Base term plus 286 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2015 2036
Clock starts
Sep 8, 2015
Term ends
Jun 20, 2036
Granted
Jan 30, 2018
base term patent term adjustment 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
286
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
3
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 runs 286 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are 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 Sep 8, 2015, when this application, 14/847,606, was filedSep 8, 2035High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+286 days, USPTO patent term adjustment recordJun 20, 2036High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 20, 2036High confidence

This family

US 9,882,397this patent
Jun 2036
Jun 2036
Application PCT/US2015/049154PCT application
no patent term
no patent term
US 10,193,353In force
Sep 2035
Sep 2035
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
Jan 31, 2017
Reel 41134, frame 70
Lilly, James D.CPG Technologies, LLCAssignment of Assignor's Interest
Jan 31, 2017
Reel 41134, frame 395
Pinzone, Joseph F.CPG Technologies, LLCAssignment of Assignor's Interest
Jan 31, 2017
Reel 41134, frame 210
Corum, James F.CPG Technologies, LLCAssignment of Assignor's Interest
Jan 31, 2017
Reel 41134, frame 286
Corum, Kenneth L.CPG Technologies, LLCAssignment of Assignor's Interest
Jan 31, 2017
Reel 41134, frame 299
Pinzone, Basil F., JR.CPG Technologies, LLCAssignment of Assignor's Interest
Jun 28, 2023
Reel 64148, frame 31
CPG Technologies, LLCQuantum Wave, LLCAssignment of Assignor's Interest

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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