FLAP DUCT holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC) with 1 filings. The WikiTrademarks Expansion Score is 0/100, low — the brand is focused on defending its existing categories rather than expanding.
USPTO data refreshed September 9, 2026
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Filing Velocity (24 Months)
Nice Class Distribution
Activity Timeline
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Recent Filings
| Serial No. | Mark | Filing Date | Status | Classes | Owner |
|---|---|---|---|---|---|
| 86913890 | FLAP DUCT | Feb 19, 2016 | Abandoned | 011 Lighting & HVAC | Leiterman and Associates, Inc. |
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FAQ: FLAP DUCT trademark portfolio
What trademarks does FLAP DUCT hold?
FLAP DUCT holds 1 USPTO trademark filings across 0 NICE classes. The largest concentration is in Class 11 (Lighting & HVAC). The most recent filings are registered to Leiterman and Associates, Inc..
How many trademarks does FLAP DUCT have at the USPTO?
WikiTrademarks tracks 1 USPTO trademark filings attributed to FLAP DUCT. The brand has been actively filing since February 2016. The count updates daily as new filings are indexed from the USPTO bulk data feed.
In which NICE classes does FLAP DUCT file most often?
FLAP DUCT's most active class is NICE Class 11 (Lighting & HVAC), with 1 filings. The full distribution across all 0 classes is shown in the Nice Class Distribution panel on this page.
Who owns the FLAP DUCT trademark?
The most recent filings under the FLAP DUCT mark are registered to Leiterman and Associates, Inc.. Trademark ownership can shift through assignments — see the Ownership & Assignment History section on this page for the full chain of title.
Is FLAP DUCT expanding into new categories?
The current WikiTrademarks Expansion Score for FLAP DUCT is 0 out of 100, which is low — the brand is focused on defending its existing categories rather than expanding. The score combines NICE class breadth, filing velocity, and the rate of cross-class movement from the brand's filing history.
How can I track new FLAP DUCT trademark filings?
Click the Watch Brand button at the top of this page to add FLAP DUCT to your Watchlist. New filings show up on your WikiTrademarks dashboard within 24 to 48 hours of being public, alongside any class expansions, status changes, or assignment events.
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