Term ends May 11, 2027 · High confidence
20-year base term ends May 11, 2027
Held by Bio-Rad Laboratories, Inc.
Filed Feb 28, 2013 as application 13/779,943 · Granted May 29, 2018
Base term, 20 years from filing
Today
2007
2027
Clock starts
May 11, 2007
May 11, 2007
Term ends
May 11, 2027
May 11, 2027
Granted
May 29, 2018
May 29, 2018
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,841,071, to May 11, 2027. The term already ends on or before that date, so the cap shortened nothing.
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.
56
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 resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 2 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts May 11, 2007, when application 11/803,104, the earliest non-provisional in its chain, was filed (this one was filed Feb 28, 2013) | May 11, 2027 | 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 resolved from the filed document (refs US 8,841,071) | resolves to May 11, 2027, no earlier than this term, so no change | High 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 | May 11, 2027 | High confidence |
This family
| US 7,041,481 | Surrendered on reissue Sep 2010 | Sep 2010 |
| Application 11/803,104 | Abandoned not computed | not computed |
| US RE41,780 | Surrendered on reissue May 2012 | May 2012 |
| Application 12/504,764 | Abandoned not computed | not computed |
| US RE43,365 | Term ended no later than Mar 2023 | no later than Mar 2023 |
| US 9,074,242 | In force Feb 2031 | Feb 2031 |
| US RE45,539 | Term ended Mar 2023 | Mar 2023 |
| US 9,399,797 | In force Nov 2032 | Nov 2032 |
8 of 56 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 |
|---|---|---|---|
| Sep 17, 2013 Reel 31267, frame 376 | Raindance Technologies, Inc. | Capital Royalty Partners II L.P.; Capital Royalty Partners II - Parallel Fund "a" L.P.; Parallel Investment Opportunities Partners II L.P. | Short-Form Patent Security Agreement |
| Sep 17, 2013 reel/frame not recorded | Raindance Technologies, Inc. | Capital Royalty Partners II L.P. | Short-Form Patent Security Agreement |
| Sep 17, 2013 reel/frame not recorded | Raindance Technologies, Inc. | Capital Royalty Partners II - Parallel Fund "a" L.P. | Short-Form Patent Security Agreement |
| Sep 17, 2013 reel/frame not recorded | Raindance Technologies, Inc. | Parallel Investment Opportunities Partners II L.P. | Short-Form Patent Security Agreement |
| Jan 10, 2014 Reel 31941, frame 145 | Link, Darren R.; Weiner, Michael; Marran, David; Rothberg, Jonathan M. | Raindance Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 17, 2017 Reel 41290, frame 585 | Capital Royalty Partners II L.P.; Capital Royalty Partners II (Cayman) L.P.; Parallel Investment Opportunities Partners II L.P.; CRG Issuer 2015-1 | Raindance Technologies, Inc. | Release of Security Interest |
| May 7, 2019 Reel 49109, frame 498 | Raindance Technologies, Inc. | Bio-Rad Laboratories, Inc. | Assignment 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2027
Term ends May 11, 2027. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,841,071, ends no earlier than this term, so it caps nothing.
Citations
208
later US patents cite this one
That is top 1% 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
Computed patent terms end on the dates shown. 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.