US3259918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water saving device
Assignee: Individual
•
Filing: 1964-12-21
•
Granted: 1966-07-12
•
Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 William E Walker
- 👤 Jr William E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/003; E03D5/006; E03D1/00; E03D1/02; E03D1/14; E03D1/142; E03D1/22; Y; Y10; Y10S; Y10S4/00; Y10S4/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A WATER CLOSET FLUSH TANK HAVING A BOTTOM, SIDE WALLS, AND CENTRALLY LOCATED FLUSHING APPARATUS, A WALL SURROUNDING THE FLUSHING APPARATUS AND SPACED INWARDLY FROM THE FLUSH TANK WALL, SAID SECOND MENTIONED WALL BEING SEALED TO THE BOTTOM OF THE FLUSH TANK IN A WATERTIGHT MANNER AND PROJECTING VERTICALLY UPWARD THEREFROM A HEIGHT SUBSTANTIALLY LESS THAN THE HEIGHT FOR THE FLUSH TANK WALL.
Claim 2
Dependent Claim
64 words
IN A WATER CLOSET FLUSH TANK HAVING A BOTTOM, SIDE WALLS, AND CENTRALLY LOCATED FLUSHING APPARATUS, A WALL SURROUNDING THE FLUSHING APPARATUS AND SPACED INWARDLY FROM THE FLUSH TANK WALL, SAID SECOND MENTIONED WALL BEING SEALED TO THE BOTTOM OF THE FLUSH TANK IN A WATERTIGHT MANNER AND PROJECTING VERTICALLY UPWARD THEREFROM A HEIGHT SUBSTANTIALLY LESS THAN THE HEIGHT FOR THE FLUSH TANK WALL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |