Patent US2793652A successfully refreshed from Google Patents.
US2793652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid collection and return device
Assignee: Individual
•
Filing: 1954-06-11
•
Granted: 1957-05-28
•
Expires: 1974-06-11
Abstract
No abstract record available.
Inventors
- 👤 Robert J Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:31
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US522668A
Cited
US1803905A
Cited
US1271599A
Cited
US1775860A
Cited
US1795006A
Cited
US1920469A
Cited
US2198412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |