Patent US2812554A successfully refreshed from Google Patents.
US2812554A
Expired / Lapsed
US
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Top rolls for spinning machines
Assignee: Individual
•
Filing: 1953-06-11
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Granted: 1957-11-12
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Expires: 1973-06-11
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:01
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/205; A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/22; D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; D01H2700/00; D01H2700/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US594605A
Cited
US762081A
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US981307A
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US2237004A
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US2644202A
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US2635300A
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US2584640A
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US2716780A
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US2724623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |