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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001041889-04-000006
Filing Date
2004-05-21
Accepted
2004-05-21 16:27:06
Documents
1
Period of Report
2004-05-19

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT edgar.html 4  
1 PRIMARY DOCUMENT edgar.xml 4 5857
  Complete submission text file 0001041889-04-000006.txt   7806
Mailing Address 1280 MASSACHUSETTS AVE SUITE 200 CAMBRIDGE MA 02138
Business Address 1280 MASSACHUSETTS AVENUE SUITE 200 CAMBRIDGE MA 02138 6178687455
PSYCHEMEDICS CORP (Issuer) CIK: 0000806517 (see all company filings)

IRS No.: 581701987 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 8071 Services-Medical Laboratories

Mailing Address C/O PAYCHEMEDICS CORP 1280 MASSACHUSETTS AVE STE 200 CAMBRIDGE MA 02138
Business Address C/O PAYCHEMEDICS CORP 1280 MASSACHUSETTS AVE STE 200 CAMBRIDGE MA 02138 6178687455
THISTLE WILLIAM R (Reporting) CIK: 0001250732 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13738 | Film No.: 04824484