Patent JPS58200159A successfully refreshed from Google Patents.
US2666823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float switch
Assignee: Boeing Co
•
Filing: 1952-05-17
•
Granted: 1954-01-19
•
Expires: 1972-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ted R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:06
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/56; H; H01; H01H; H01H36/00; H01H36/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1272782A
Cited
US2116415A
Cited
US2335055A
Cited
US2405140A
Cited
US2495149A
Cited
US2577165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |