Patent US2483967A successfully refreshed from Google Patents.
US2483967A
Expired / Lapsed
US
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Tapping tube and liquid level indicator
Assignee: Individual
•
Filing: 1947-04-22
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Granted: 1949-10-04
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Expires: 1967-04-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Eberwine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:00
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; B; B67; B67D; B67D1/00; B67D1/08; B67D1/0801; B67D1/0802; B67D1/0829
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |