Patent US3029958A successfully refreshed from Google Patents.
US3029958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable cement silo
Assignee: Individual
•
Filing: 1956-10-08
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Granted: 1962-04-17
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Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Harold W Ruby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:55
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/26; B65D88/30; B28; B28C; B28C7/00; B28C7/0046; B28C7/0084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284263A
Cited
US1450461A
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FR769063A
Cited
US2043877A
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US2347437A
Cited
US2342528A
Cited
US2565663A
Cited
US2624483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |