Patent US2730122A successfully refreshed from Google Patents.
US2730122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water control for closet tanks
Assignee: FREE GOLD ENTPR Inc
•
Filing: 1951-12-24
•
Granted: 1956-01-10
•
Expires: 1971-12-24
Abstract
No abstract record available.
Inventors
- 👤 Svirsky Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:38
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7449; Y10T137/7465; Y10T137/8593; Y10T137/86348; Y10T137/86364
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2213753A
Cited
US1618331A
Cited
US538802A
Cited
US662837A
Cited
US1274924A
Cited
US1271459A
Cited
US1435083A
Cited
US1643558A
Cited
US1641756A
Cited
US1956395A
Cited
US2271419A
Cited
US2270910A
Cited
US2299707A
Cited
US2382500A
Cited
US2426782A
Cited
US2646069A
Cited
US2606586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |