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US3433258A
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US
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Multi-purpose underground tank
Assignee: IRVIN E STEELE
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Filing: 1965-09-28
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Granted: 1969-03-18
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Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Irvin E Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:07
CPC Classifications
E; E03; E03F; E03F11/00; B; B65; B65D; B65D88/00; B65D88/76; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1987366A
Cited
US2024579A
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US2698007A
Cited
US2673571A
Cited
US2784291A
Cited
US2971532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |