What this record means
The record shows that BIGGER YIELDS FLOWERING SYSTEM is a cancelled registration; the Supplemental Register entry (Reg. 3999892) was cancelled on April 30 2019 because the owner, Advanced Nutrients Ltd., failed to file an acceptable Section 8 declaration, and the history contains no later enforcement activity. The registration covered only class 001 goods – “plant nutrients, namely, fertilizers and soil additives” – so a similar name used for those types of products would present the closest record‑based concern, while uses in unrelated categories fall farther from the scope shown. The prosecution history indicates the application was initially examined, received an amendment on June 2 2011, was approved for the Supplemental Register on June 8 2011, and entered registration on July 19 2011; the later cancellation reflects a maintenance lapse rather than a substantive refusal. Because the mark was on the Supplemental Register and is now cancelled, the record does not give the owner control over every use of the wording. I'd treat this as a meaningful concern if you plan to market fertilizers or soil additives under a similar name.
Informational only - not legal advice.