US2661913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damping means for yarn tension compensating devices
Assignee: Specialties Development Corp
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Filing: 1952-06-24
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Granted: 1953-12-08
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Expires: 1972-06-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Heizer
- 👤 Warwick John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:59
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/22; B65H59/24; B65H2601/00; B65H2601/50; B65H2601/52; B65H2601/524; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |