US2639250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven soft-surface floor covering and method of producing the same
Assignee: BIGELOW SANFORD CARPET CO
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Filing: 1951-11-07
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Granted: 1953-05-19
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Expires: 1971-11-07
Abstract
No abstract record available.
Inventors
- 👤 Henry A Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:22
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/23964; Y10T428/23971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF MAKING BATT-COVERED SHEET MATERIAL WHICH COMPRISES CORRUGATING A GRAINED BATT OF FIBROUS MATERIAL TO FORM CORRUGATIONS THEREIN EXTENDING CROSSWISE OF THE GRAIN THEREOF, DEPOSITING THE CORRUGATED BATT ON THE THERMOPLASTIC-COATED FACE OF A FIBROUS SHEET, PRESSING THE TROUGHS OF THE CORRUGATIONS AGAINST THE COATING ON THE SHEET, LOCALLY HEATING THE PRESSED TROUGHS TO SOFTEN THE THERMOPLASTIC MATERIAL AND EMBED THE TROUGHS THEREIN, AND ALLOWING THE THERMOPLASTIC MATERIAL TO COOL FOR RETAINING THE EMBEDDED TROUGH THEREBY FIXEDLY CONNECTING THE BATT TO THE FIBROUS MATERIAL AND FORMING A RIBBED BATT SURFACE ON THE FIBROUS MATERIAL.
Claim 2
Independent Claim
96 words
THE METHOD OF MAKING BATT-COVERED SHEET MATERIAL WHICH COMPRISES CORRUGATING A GRAINED BATT OF FIBROUS MATERIAL TO FORM CORRUGATIONS THEREIN EXTENDING CROSSWISE OF THE GRAIN THEREOF, DEPOSITING THE CORRUGATED BATT ON THE THERMOPLASTIC-COATED FACE OF A FIBROUS SHEET, PRESSING THE TROUGHS OF THE CORRUGATIONS AGAINST THE COATING ON THE SHEET, LOCALLY HEATING THE PRESSED TROUGHS TO SOFTEN THE THERMOPLASTIC MATERIAL AND EMBED THE TROUGHS THEREIN, AND ALLOWING THE THERMOPLASTIC MATERIAL TO COOL FOR RETAINING THE EMBEDDED TROUGH THEREBY FIXEDLY CONNECTING THE BATT TO THE FIBROUS MATERIAL AND FORMING A RIBBED BATT SURFACE ON THE FIBROUS MATERIAL.
References Cited (Backward Citations)
US1914962A
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US2033325A
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US2116048A
Cited
US2160154A
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US2312129A
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US2515847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |