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Patent US3459409A successfully refreshed from Google Patents.
US3459409A
Expired / Lapsed
US
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Mixing and conveyor system
Assignee: RICHARD H GOLDBERGER
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Filing: 1967-02-16
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Granted: 1969-08-05
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Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Richard H Goldberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:56
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/14; B28C5/142; B28C5/143; B28C5/1238; B28C5/1246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |