US2768796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic thread-tensioners
Assignee: Individual
•
Filing: 1954-08-12
•
Granted: 1956-10-30
•
Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Levine Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:39
CPC Classifications
D; D05; D05B; D05B47/00; D05D; D05D2207/00; D05D2207/05; D05D2207/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US22045A
Cited
US751930A
Cited
US2073818A
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FR864717A
Cited
US2361239A
Cited
US2605301A
Cited
US2650043A
Cited
US2614773A
Cited
US2724065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |