Patent US2799389A successfully refreshed from Google Patents.
US2799389A
Expired / Lapsed
US
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Fin winding machines
Assignee: Air and Liquid Systems Corp
•
Filing: 1954-10-25
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Granted: 1957-07-16
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Robert M Stikeleather
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:32
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/22; B21C37/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791544A
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US767078A
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US1301679A
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US1472719A
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US1896350A
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US1884203A
Cited
US2251642A
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US2316117A
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US2374144A
Cited
US2429201A
Cited
US2538950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |