Patent US2699417A successfully refreshed from Google Patents.
US2699417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-covered aluminum assembly for bonding to plywood
Assignee: Union Carbide Corp
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Filing: 1949-05-06
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Granted: 1955-01-11
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Expires: 1969-05-06
Abstract
No abstract record available.
Inventors
- 👤 Repsher Leonard
- 👤 Pedicini Salvador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249926; Y10T428/24994; Y10T428/24995; Y10T428/249952; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/249966; Y10T428/31504; Y10T428/31678; Y10T428/31688; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
METHOD FOR PREPARING A PAPER-COVERED SHEET ALUMINUM SUB-ASSEMBLY USEFUL IN THE MANUFACTURE OF LAMINATED FIBROUS STRUCTURES, WHICH COMPRISES COATING THE SHEET ALUMINUM SURFACE WITH A SOLVENT SOLUTION OF ALCOHOL-REACTED THERMOSETTING PHENOL-FORMALDEHYDE RESIN HAVING BEEN REACTED IN THE PRESENCE OF A SATURATED LOWER ALIPHATIC MONOHYDRIC ALCOHOL HAVING FROM TWO TO FIVE CARBON ATOMS IN THE MOLECULE UNTIL THE RESIN HAS A GELATION SPEED BETWEEN 30 AND 180 SECONDS AT 121*C., DRYING THE COATING TO A TACKY STATE, PRESSURE APPLYING PAPER ONTO THE TACKY COATING, DRYING THE ASSEMBLY OF PAPER AND SHEET ALUMINUM AT ELEVATED TEMPERATURES TO A SUBSTANTIALLY SOLVENT-FREE CONDITION, RECOATING THE ASSEMBLY WITH THE SAME RESIN SOLUTION, AND THEN DRYING THE RECOATED ASSEMBLY BELOW THE HEAT-HARDENING TEMPERATURE OF THE RESIN.
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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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |