Patent US2957326A successfully refreshed from Google Patents.
US2957326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knitting machines
Assignee: HOBOURN F N F Ltd
•
Filing: 1958-04-07
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Granted: 1960-10-25
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Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 Porter Allan William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:32
CPC Classifications
D; D04; D04B; D04B27/00; D04B27/06; D04B27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1752754A
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US2175238A
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US2292287A
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US2428405A
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US2480231A
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US2523460A
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US2699658A
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US2680959A
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US2720096A
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US2822679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |