US2491454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonslip fabrics and method of preparation thereof
Assignee: Wyeth Holdings LLC
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Filing: 1944-10-04
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Granted: 1949-12-13
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Expires: 1964-10-04
Abstract
No abstract record available.
Inventors
- 👤 Alden D Nute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:51
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/172; Y10T442/178; Y10T442/179; Y10T442/20; Y10T442/2344
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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |