US2758726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Winget Ltd
•
Filing: 1950-11-07
•
Granted: 1956-08-14
•
Expires: 1970-11-07
Abstract
No abstract record available.
Inventors
- 👤 Butler Herbert Georg Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:39
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/06; B28C7/08; B28C7/0835; B28C7/0858
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2133170A
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US2213047A
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US2271518A
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US2272648A
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US2391224A
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US2415515A
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GB617497A
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US2498117A
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US2565792A
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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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |