US2778386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid winding machine
Assignee: Kahle Engineering Co
•
Filing: 1952-10-28
•
Granted: 1957-01-22
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Expires: 1972-10-28
Abstract
No abstract record available.
Inventors
- 👤 James B Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:40
CPC Classifications
B; B21; B21F; B21F3/00; B21F3/02; B21F3/04; H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022; H01J2893/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1994307A
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US1970599A
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US2188906A
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US2426522A
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US2480677A
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US2441228A
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US2425615A
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US2479019A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |