US2957793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of laminating polyurethane foam
Assignee: Curtiss Wright Corp
•
Filing: 1956-09-28
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Granted: 1960-10-25
•
Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 John W Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:50
CPC Classifications
B; B32; B32B; B32B27/00; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C66/00; B29C66/003; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/71; B29C66/72; B29C66/727; B29C66/729; B29C66/73; B29C66/735; B29C66/7352; B29C66/73521; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C67/00; B29C67/20; B29C2793/00; B29C2793/0063; B29C2793/009; B29C65/48; B29C66/004; B29C66/0042; B29C66/0046; B29C66/00461; B29C66/731; B29C66/7311; B29C66/73115; B29C66/81; B29C66/812; B29C66/8122; B29C66/90; B29C66/91; B29C66/914; B29C66/9161; B29C66/92; B29C66/924; B29C66/9241; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T442/00; Y10T442/30; Y10T442/3325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF FORMING A LAMINATE CONSTRUCTION WHICH METHOD COMPRISES HEATING A SHEET OF FOAMED POLYURETHANE PLASTIC MATERIAL OF THE POLYESTER TYPE BY CONTACTING THE SAME WITH A GAS FLAME AT THE SURFACE FOR A TIME SUFFICIENT TO FUSE A SURFACE LAYER ONLY AND THEREBY TO RENDER SUBSTANTIALLY ONLY SUCH SURFACE LAYER SOFT AND TACKY, AND
Claim 2
Independent Claim
56 words
A METHOD OF FORMING A LAMINATE CONSTRUCTION WHICH METHOD COMPRISES HEATING A SHEET OF FOAMED POLYURETHANE PLASTIC MATERIAL OF THE POLYESTER TYPE BY CONTACTING THE SAME WITH A GAS FLAME AT THE SURFACE FOR A TIME SUFFICIENT TO FUSE A SURFACE LAYER ONLY AND THEREBY TO RENDER SUBSTANTIALLY ONLY SUCH SURFACE LAYER SOFT AND TACKY, AND
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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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |