Term ends no later than Nov 18, 2026 · Medium confidence
20-year base term ends Nov 18, 2026
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Rfmicron, Inc.
Filed Jun 1, 2015 as application 14/727,523 · Granted Jun 5, 2018
Base term, 20 years from filing
Today
2006
2026
Clock starts
Nov 18, 2006
Nov 18, 2006
Ends no later than
Nov 18, 2026
Nov 18, 2026
Granted
Jun 5, 2018
Jun 5, 2018
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
55
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. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 2 maintenance fees are paid so far. Confidence: Medium. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Nov 18, 2006, when application 11/601,085, the earliest non-provisional in its chain, was filed (this one was filed Jun 1, 2015) | Nov 18, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Nov 18, 2026 | Medium confidence |
This family
| US 7,586,385 | In force Jul 2027 | Jul 2027 |
| US 8,081,043 | In force (reinstated) Nov 2026 | Nov 2026 |
| US 8,749,319 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| US 9,048,819 | In force Jun 2028 | Jun 2028 |
| US 10,224,902 | In force Oct 2027 | Oct 2027 |
| US 9,825,608 | In force Nov 2026 | Nov 2026 |
| US 9,785,807 | In force Oct 2027 | Oct 2027 |
| US 9,704,085 | In force Nov 2026 | Nov 2026 |
8 of 55 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 20, 2017 Reel 41022, frame 991 | Rokhsaz, Shahriar; Young, Brian David; Younis, Ahmed | Rfmicron, Inc. | Assignment of Assignor's Interest |
| Apr 10, 2020 Reel 52371, frame 82 | Rfmicron, Inc. | KLDC Partners LP; Jdfwc, Ltd.; Laney, Kirk S; Paulos Holdings, Ltd.; Paulos, John; Rokhsaz, Shahriar; Mirfakhraei, Seyedeh Zinat; Carlo Strippoli 2012 Family Trust; Jacobsson, Jacob; Kingsley Noelle Investments, LLC; Sun Faber Capital, Ltd.; Rich Power Management, Ltd.; Politte Capital Group, LLC | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | KLDC Partners LP | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Jdfwc, Ltd. | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Laney, Kirk S | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Paulos Holdings, Ltd. | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Paulos, John | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Rokhsaz, Shahriar | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Mirfakhraei, Seyedeh Zinat | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Carlo Strippoli 2012 Family Trust | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Jacobsson, Jacob | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Kingsley Noelle Investments, LLC | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Sun Faber Capital, Ltd. | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Rich Power Management, Ltd. | Security Interest |
| Apr 10, 2020 reel/frame not recorded | Rfmicron, Inc. | Politte Capital Group, LLC | Security Interest |
| Apr 29, 2021 Reel 56105, frame 455 | KLDC Partners LP; Jdfwc, Ltd.; Laney, Kirk S; Paulos Holdings, Ltd.; Paulos, John; Rokhsaz, Shahriar; Mirfakhraei, Seyedeh Zinat; Carlo Strippoli 2012 Family Trust; Jacobsson, Jacob; Kingsley Noelle Investments, LLC; Sun Faber Capital, Ltd.; Rich Power Management, Ltd.; Politte Capital Group, LLC | Rfmicron, Inc. | Release of Security 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.
What's changing
Nov 2026
Term ends no later than Nov 18, 2026. No further fees fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 18, 2026. We will not guess the cap.
Citations
21
later US patents cite this one
That is top 25% of utility patents granted in 2018 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.