US3448618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level indicating element
Assignee: Individual
•
Filing: 1967-06-28
•
Granted: 1969-06-10
•
Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Paul A Lomolino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/292; G01F23/2921; G01F23/2922; G01F23/2924; Y; Y10; Y10S; Y10S116/00; Y10S116/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB201982A
Cited
US1485772A
Cited
US2100148A
Cited
US2123479A
Cited
US2190027A
Cited
US2368705A
Cited
US2468833A
Cited
US2615337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |