Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Device for filtering water from an overflowing swimming pool, using an accumulating tank acting as a gravity filter

Device for filtering water from an overflowing swimming pool, using an accumulating tank acting as a gravity filter

US Patent 4867874 · Granted Sep 19, 1989

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →