US3426445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base for steel storage bin
Assignee: Individual
•
Filing: 1966-08-22
•
Granted: 1969-02-11
•
Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Vincent B Steffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US349059A
Cited
US503573A
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US902357A
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US1570814A
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US1717772A
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US2081602A
Cited
US2252179A
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US2679736A
Cited
US2818009A
Cited
US3028928A
Cited
FR1353191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |