HARLECO
Live / Registered — Registered and renewed (as of 30 Jan 2026)
What this means for you
Registered since 08 Oct 1935. The owner can stop confusingly similar uses in the classes it covers; it stays on the register as long as the owner keeps up the maintenance filings (next due by 08 Oct 2035: the §8 & §9 renewal).
Record
- Serial number
- 71363364
- Registration number
- 0328860
- Mark type
- Stylized text
- Filed
- 03 Apr 1935
- Registered
- 08 Oct 1935
- Current term from
- 08 Oct 2025
- Next maintenance filing
- §8 & §9 renewal, due by 08 Oct 2035 (grace period to 08 Apr 2036)
- Attorney of record
- William C. Wright
Goods and services
- Class 005 — Pharmaceuticals: LABORATORY CHEMICAL PRODUCTS, NAMELY-BIOLOGICAL STAINS, STAINING SOLUTIONS, EMBEDDING AND MOUNTING PREPARATIONS AND PURE SOLVENTS [, DRY POWDER AND CRYSTALLINE INDICATORS, H-ION INDICATOR SOLUTIONS, H-ION DETERMINATION AND VOLUMETRIC SOLUTIONS ]
Owner
- MERCK KGAA, DARMSTADT, DE
- EMD CHEMICALS INC., GIBBSTOWN, NJ, US
- EM INDUSTRIES, INCORPORATED, HAWTHORNE, NY, US
- HARTMAN-LEDDON CO., INC., PHILADELPHIA, PA, US
Prosecution history
- 30 Jan 2026 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 30 Jan 2026 — REGISTERED AND RENEWED (SIXTH RENEWAL - 10 YRS)
- 30 Jan 2026 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 30 Jan 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 30 Jan 2026 — CASE ASSIGNED TO POST REGISTRATION PARALEGAL
- 27 Oct 2025 — TEAS SECTION 8 & 9 RECEIVED
- 08 Oct 2024 — COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED
- 12 Apr 2016 — NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED
- 12 Apr 2016 — REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS)
- 12 Apr 2016 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED
- 04 Apr 2016 — TEAS SECTION 8 & 9 RECEIVED
- 15 Dec 2010 — AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
- 13 Jan 2009 — CASE FILE IN TICRS
- 18 Nov 2005 — REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)
- 18 Nov 2005 — REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED