IP Library › Granted Patent US 1,109,855
Granted Patent S1
US 1,109,855 · App. 29/979,029 · Granted Jan 20, 2026

Steam trap

Inventors: Constantine N. Stavropoulos (Northbrook, IL); Charles N. Miller (Grayslake, IL)
Assignee: STEAMGARD, LLC
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 1,109,855
App. No.
29/979,029
Granted
Jan 20, 2026
Kind
S1
Claims (1)

The ornamental design for a steam trap as shown and described.

Continuity (1)
Division 29935654 · Apr 3, 2024
References Cited (40)
US 1639208A · Basenau · 1927 [cited by examiner]
US D163672S · Bissell · 1951 [cited by examiner]
US D174361S · Wells · 1955 [cited by examiner]
US D176089S · Wells · 1955 [cited by examiner]
US 2783770A · Richter · 1957 [cited by examiner]
US 3302878A · Fujiwara · 1967 [cited by examiner]
US 3724751A · Fujiwara · 1973 [cited by examiner]
US 3877895A · Wonderland · 1975 [cited by examiner]
US 4245783A · Richter · 1981 [cited by examiner]
US D278316S · Bengtson · 1985 [cited by examiner]
US 4745943A · Mortensen · 1988 [cited by examiner]
US D338708S · Oike · 1993 [cited by examiner]
US 5406974A · Griswold · 1995 [cited by examiner]
US D384300S · Hendy · 1997 [cited by examiner]
US 5948128A · Stavropoulos · 1999 [cited by examiner]
US 6148845A · Borowski · 2000 [cited by examiner]
US D479577S · Engelbrektsson · 2003 [cited by examiner]
US D496091S · Katzman · 2004 [cited by examiner]
US 6840112B2 · Ikeda · 2005 [cited by examiner]
US D654990S · Coley · 2012 [cited by examiner]
US D666700S · Oike · 2012 [cited by examiner]
US D674472S · Oike · 2013 [cited by examiner]
US D675289S · Freudendahl · 2013 [cited by examiner]
US D692983S · Nissen · 2013 [cited by examiner]
US D697587S · Nissen · 2014 [cited by examiner]
US D720430S · Yoshida · 2014 [cited by examiner]
US 9109935B2 · Yang · 2015 [cited by examiner]
US D763409S · Cox · 2016 [cited by examiner]
US D794166S · Komatsuzaki · 2017 [cited by examiner]
US D800258S · Komatsuzaki · 2017 [cited by examiner]
US D838812S · Komatsuzaki · 2019 [cited by examiner]
US D838813S · Komatsuzaki · 2019 [cited by examiner]
US D842732S · Jungen · 2019 [cited by examiner]
US D842735S · Jungen · 2019 [cited by examiner]
US D856482S · Thiel · 2019 [cited by examiner]
US D915552S · Thiel · 2021 [cited by examiner]
US 11788684B1 · Stavropoulos · 2023 [cited by examiner]
US D1018799S · Stavropoulos · 2024 [cited by examiner]
US D1060617S · Stavropoulos · 2025 [cited by examiner]
US 20090044868A1 · Chiang · 2009 [cited by examiner]