US2547110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning apparatus for working articles
Assignee: AT&T Inc
•
Filing: 1946-12-03
•
Granted: 1951-04-03
•
Expires: 1966-12-03
Abstract
No abstract record available.
Inventors
- 👤 Bonnett Gerson
- 👤 Vincent A Rayburn
- 👤 Duer C Robson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:53
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B21D22/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US310431A
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US541382A
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US603095A
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US603098A
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US928618A
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US960769A
Cited
US1452113A
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US1751085A
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US2272111A
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US2308512A
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US2345177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |