US2356652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level gauge
Assignee: ROCHESTER Manufacturing CO Inc
•
Filing: 1943-03-01
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Granted: 1944-08-22
•
Expires: 1963-03-01
Abstract
No abstract record available.
Inventors
- 👤 William B Connolly
- 👤 George E Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:54
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/32; G01F23/36; G01F23/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-22 | 1948-02-21 | 1948-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-22 | 1952-02-21 | 1952-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-22 | 1956-02-21 | 1956-08-22 | $7700.00 | Window Closed / Lapsed |