US2937411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing yarn sliver
Assignee: Proctor and Schwartz Inc
•
Filing: 1954-09-15
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Granted: 1960-05-24
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Expires: 1974-09-15
Abstract
No abstract record available.
Inventors
- 👤 Harmon B Riehl
- 👤 John W Powischill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:20
CPC Classifications
D; D01; D01G; D01G99/00
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) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |