# BIOPURE CORP — PRE 14A

BIOPURE CORP of CAMBRIDGE, MA filed a PRE 14A with the SEC on 2005-02-11. Industry: Biological Products, (No Diagnostic Substances).

## Filing

- Filed: 2005-02-11
- Form: PRE 14A
- Accession: 0001206774-05-000159
- Registrant: BIOPURE CORP
- CIK: 0000815508
- Industry (SIC): Biological Products, (No Diagnostic Substances) (2836)
- State of incorporation: DE
- Location: CAMBRIDGE, MA

## Documents (3)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | PRE 14A | bc909935.htm |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (16)

_Showing 12 of 16 filings._

| Filed | Form |
| --- | --- |
| [2008-02-22](https://search.stillhousedata.com/proxy/0001193125-08-035434) | DEF 14A |
| [2007-08-20](https://search.stillhousedata.com/proxy/0000950135-07-005196) | DEF 14A |
| [2007-08-10](https://search.stillhousedata.com/proxy/0000950135-07-004926) | PRE 14A |
| [2007-02-27](https://search.stillhousedata.com/proxy/0000950135-07-001091) | DEF 14A |
| [2006-02-15](https://search.stillhousedata.com/proxy/0000950135-06-000866) | DEF 14A |
| [2005-02-28](https://search.stillhousedata.com/proxy/0001206774-05-000231) | DEF 14A |
| [2005-02-24](https://search.stillhousedata.com/proxy/0001206774-05-000226) | PRER14A |
| 2005-02-11 | PRE 14A |
| [2004-10-25](https://search.stillhousedata.com/proxy/0001206774-04-001514) | DEF 14A |
| [2004-10-14](https://search.stillhousedata.com/proxy/0000950135-04-004769) | PRE 14A |
| [2004-04-05](https://search.stillhousedata.com/proxy/0000898080-04-000193) | DEFA14A |
| [2004-02-27](https://search.stillhousedata.com/proxy/0000898080-04-000122) | DEF 14A |

## More

- [CIK 815508 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=815508&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001206774-05-000159.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.