US3520115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible hood assembly
Assignee: MILL AND MINE SERVICES Inc A CORP OF
•
Filing: 1968-06-24
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Granted: 1970-07-14
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Expires: 1988-06-24
Abstract
No abstract record available.
Inventors
- 👤 Lonnie E Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:11
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; B; B01; B01D; B01D46/00; B01D46/10; B01D46/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US462127A
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US404194A
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US1015430A
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US2258344A
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US2621755A
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US2627854A
Cited
US2825500A
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US2974663A
Cited
US3082680A
Cited
US3120076A
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US3372632A
Cited
US3378934A
Cited
US3412530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |