Patent US3057490A successfully refreshed from Google Patents.
US3057490A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1959-08-07
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Granted: 1962-10-09
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Expires: 1979-08-07
Abstract
No abstract record available.
Inventors
- 👤 Sauer Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:19
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6463; B66; B66C; B66C13/00; B66C13/18; B66C2700/00; B66C2700/06; B66C2700/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2742165A
Cited
US2724620A
Cited
US2876816A
Cited
US2817448A
Cited
US2768760A
Cited
US2935214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |