US2486246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap action drain control device
Assignee: Individual
•
Filing: 1945-07-31
•
Granted: 1949-10-25
•
Expires: 1965-07-31
Abstract
No abstract record available.
Inventors
- 👤 Henry F Beeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:32
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22; E03C1/23; E03C1/2302; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189906221A
Cited
US831745A
Cited
US1012041A
Cited
US1647188A
Cited
US1821584A
Cited
GB436293A
Cited
US2288767A
Cited
US2327393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |