US2779642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel
Assignee: WIL MAT CORP
•
Filing: 1954-06-14
•
Granted: 1957-01-29
•
Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 John T Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:26
CPC Classifications
A; A47; A47B; A47B11/00; A47B2200/00; A47B2200/04; Y; Y10; Y10S; Y10S248/00; Y10S248/917; Y10S248/919; Y10S248/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1337059A
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US1249707A
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US1524424A
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US2607641A
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DE812705C
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US2625983A
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US2592811A
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US2641310A
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US2671631A
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GB695600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |