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Patent US3421644A successfully refreshed from Google Patents.
US3421644A
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Method and apparatus for transporting grain bins
Assignee: Individual
•
Filing: 1967-08-17
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Granted: 1969-01-14
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Expires: 1987-08-17
Abstract
No abstract record available.
Inventors
- 👤 Lennie D Butcher E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:38
CPC Classifications
B; B60; B60P; B60P3/00; Y; Y10; Y10S; Y10S414/00; Y10S414/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US457811A
Cited
US611542A
Cited
US2319536A
Cited
US2419314A
Cited
US2624483A
Cited
US2886273A
Cited
DE1136218B
Cited
US3251497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |