Patent US4209251A successfully refreshed from Google Patents.
Patent US3287203A successfully refreshed from Google Patents.
US3287203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardwood flooring
Assignee: Elmendorf Research Inc
•
Filing: 1962-03-14
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Granted: 1966-11-22
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Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Elmendorf Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:57
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/022; E04F15/04; E04F15/041; E04F15/042; E04F15/045; E04F2203/00; E04F2203/08; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/167; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24612; Y10T428/24942; Y10T428/2495; Y10T428/24967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A PREFINISHED WOOD FLOORING HAVING A DENT RESISTANCE EXCEEDING THAT OF FLOORING HARDWOOD AND WHICH FLOORING IS ADAPTED FOR BONDING TO A SUBFLOOR BY PRESSURE MOMENTARILY APPLIED AND WHICH FLOORING REQUIRES NO REFINISHING AFTER INSTALLATION, INCLUDING, A LIGNO-CELLULOSIC FIBROUS BASE HAVING A HARDNESS RESULTING DUE TO A DENSITY OF FROM ABOUT 0.85 TO 1.15, SAID BASE HAVING A THICKNESS BETWEEN ABOUT 1/8 INCH AND 1/20 INCH TO PROVIDE SERVICABILITY TO ALLOW TENDED US TOGETHER WITH ADEQUATE FLEXIBLITY TO ALLOW SAID BASE TO FOLLOW THE UNDULATIONS IN A SUBFLOOR WHEN BONDED TO A SUBJFLOR WITH A ADHESIVE WHILE USING MOMENTATRY PRESSURE, A LAYER OF HARWOD VENEER, THINNER THAN ABOUT 0.04 INCH, SAID VENEER BONDED TO SAID BASE, AND A CLEAR WEAR RESISTANT COVERING BONDED TO THE VEENER, SAID COVERING CONSISTING ESENTIALLY OF A RESIN FILM HAVING FLEXIBILITY AND SOFTENESS SUFFICIENT TO PROVIDE ADEQUATE TRACTION FOR THE INSTALED FLOORING, AND SAID FILM HAVING A THICKNESS OF AT LEAST 0.005 INCH.
Claim 2
Dependent Claim
158 words
A PREFINISHED WOOD FLOORING HAVING A DENT RESISTANCE EXCEEDING THAT OF FLOORING HARDWOOD AND WHICH FLOORING IS ADAPTED FOR BONDING TO A SUBFLOOR BY PRESSURE MOMENTARILY APPLIED AND WHICH FLOORING REQUIRES NO REFINISHING AFTER INSTALLATION, INCLUDING, A LIGNO-CELLULOSIC FIBROUS BASE HAVING A HARDNESS RESULTING DUE TO A DENSITY OF FROM ABOUT 0.85 TO 1.15, SAID BASE HAVING A THICKNESS BETWEEN ABOUT 1/8 INCH AND 1/20 INCH TO PROVIDE SERVICABILITY TO ALLOW TENDED US TOGETHER WITH ADEQUATE FLEXIBLITY TO ALLOW SAID BASE TO FOLLOW THE UNDULATIONS IN A SUBFLOOR WHEN BONDED TO A SUBJFLOR WITH A ADHESIVE WHILE USING MOMENTATRY PRESSURE, A LAYER OF HARWOD VENEER, THINNER THAN ABOUT 0.04 INCH, SAID VENEER BONDED TO SAID BASE, AND A CLEAR WEAR RESISTANT COVERING BONDED TO THE VEENER, SAID COVERING CONSISTING ESENTIALLY OF A RESIN FILM HAVING FLEXIBILITY AND SOFTENESS SUFFICIENT TO PROVIDE ADEQUATE TRACTION FOR THE INSTALED FLOORING, AND SAID FILM HAVING A THICKNESS OF AT LEAST 0.005 INCH.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |