Patent US2754071A successfully refreshed from Google Patents.
US2754071A
Expired / Lapsed
US
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Thread tensioning device
Assignee: Individual
•
Filing: 1950-05-08
•
Granted: 1956-07-10
•
Expires: 1970-05-08
Abstract
No abstract record available.
Inventors
- 👤 Furst Stefan
- 👤 Beckers Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:40
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/26; B65H59/28; B65H2555/00; B65H2555/10; B65H2555/13; B65H2601/00; B65H2601/50; B65H2601/52; B65H2601/524; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |