Patent US3025731A successfully refreshed from Google Patents.
US3025731A
Expired / Lapsed
US
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Transfer apparatus
Assignee: Sheffield Corp
•
Filing: 1957-11-21
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Granted: 1962-03-20
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Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Orville W Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:07
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/05; B21D43/055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US736265A
Cited
US1285104A
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US1577627A
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US2124113A
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US2132244A
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US2074680A
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US2382339A
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US2494137A
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US2642179A
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US2736909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |