US2439903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread advancing, storage, and stretching reel
Assignee: United States Department of Agriculture
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Filing: 1946-12-06
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Granted: 1948-04-20
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Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard A O'connell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:11
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0454; D01D5/00; D01D5/12; D01D5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE448437C
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US1191904A
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US1341003A
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US1682453A
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GB539200A
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US2268866A
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US2388591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |