Patent US2650486A successfully refreshed from Google Patents.
US2650486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knitting machine
Assignee: Individual
•
Filing: 1950-04-26
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Granted: 1953-09-01
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Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Sr Hans Hartung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:54
CPC Classifications
D; D04; D04B; D04B27/00; D04B27/06; D04B27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US8773A
Cited
USRE15901E
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GB371062A
Cited
US2333697A
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US2339153A
Cited
GB618583A
Cited
US2504316A
Cited
US2428405A
Cited
US2480231A
Cited
US2534184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |