Patent US2584493A successfully refreshed from Google Patents.
US2584493A
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US
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Looped pile rug
Assignee: National Automotive Fibres Inc
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Filing: 1949-08-09
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Granted: 1952-02-05
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Expires: 1969-08-09
Abstract
No abstract record available.
Inventors
- 👤 Burton A Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:17
CPC Classifications
D; D06; D06H; D06H5/00; A; A47; A47G; A47G27/00; A47G27/02; A47G27/0243; A47G27/025; Y; Y10; Y10T; Y10T428/00; Y10T428/19; Y10T428/23907; Y10T428/23929
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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |