Patent US2673039A successfully refreshed from Google Patents.
US2673039A
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Pirn winding machine
Assignee: Wildt and Co Ltd
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Filing: 1950-08-25
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Granted: 1954-03-23
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Expires: 1970-08-25
Abstract
No abstract record available.
Inventors
- 👤 Croucher Antony Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:19
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/10; B65H54/14; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL43996C
Cited
US2247718A
Cited
US2234356A
Cited
CH226210A
Cited
US2378978A
Cited
US2439519A
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US2426168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |