Inventor
Jane E. H. Cowan
Inventor
Potomac, MD, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E03Bprimary
E03BInstallations or methods for obtaining, collecting, or distributing water50%
E03FSewers50%
PatentTitleYear
3,970,559'Drain guard'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to CANNON FRANCES G H (1)· patent assignee history
1976Patents assigned to CANNON THOMAS (1)· patent assignee history
1976Patents assigned to COWAN JANE E H (1)· patent assignee history
1976Patents assigned to MCCARTHY BERNARD (1)· patent assignee history
1976Based in Potomac, MD, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANNON FRANCES G H | 1 | 1976 |
| CANNON THOMAS | 1 | 1976 |
| COWAN JANE E Hself | 1 | 1976 |
| MCCARTHY BERNARD | 1 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| Potomac, Maryland, US | 1 | 1976 |