Patent US2338933A successfully refreshed from Google Patents.
US2338933A
Expired / Lapsed
US
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Winding carrier for freshly spun threads of artificial silk
Assignee: FIRM FELDMUHLE A G VORMALS LOE
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Filing: 1940-07-13
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Granted: 1944-01-11
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Expires: 1960-07-13
Abstract
No abstract record available.
Inventors
- 👤 Grauer Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:05
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/40; B65H54/54; B65H54/543; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-01-10 | 1947-07-12 | 1948-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-10 | 1951-07-12 | 1952-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-10 | 1955-07-12 | 1956-01-11 | $7700.00 | Window Closed / Lapsed |