US2716341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank depth and time recording mecha nism
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-09-13
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Granted: 1955-08-30
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 William T Ilfrey
- 👤 Martin E True
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:52
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/40; G01F23/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US619667A
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US2496686A
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US776315A
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US981421A
Cited
US1182765A
Cited
US1741792A
Cited
US2568348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |