US3429479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoppering and orienting device
Assignee: Individual
•
Filing: 1967-12-05
•
Granted: 1969-02-25
•
Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Earl Birkett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:06
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B65H; B65H67/00; B65H67/06; B65H67/061; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316932A
Cited
US949647A
Cited
US2623803A
Cited
US2915165A
Cited
US2875884A
Cited
US2857039A
Cited
US3108712A
Cited
GB1015712A
Cited
US3166177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |