Patent US2220958A successfully refreshed from Google Patents.
US2220958A
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Tensioned yarn and thread and method of forming same
Assignee: Copeman Laboratories Co
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Filing: 1935-05-13
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Granted: 1940-11-12
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Expires: 1955-05-13
Abstract
No abstract record available.
Inventors
- 👤 Harley Y Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:16
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/40; D06; D06B; D06B3/00; D06B3/04; D06B2700/00; D06B2700/25; Y; Y10; Y10S; Y10S8/00; Y10S8/03; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |