US2518388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin adhesives and processes of producing same
Assignee: Wyeth Holdings LLC
•
Filing: 1945-04-18
•
Granted: 1950-08-08
•
Expires: 1965-04-18
Abstract
No abstract record available.
Inventors
- 👤 William G Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:41
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/025; C08G16/0256; C08G16/0262; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ACID HARDENABLE ADHESIVE, THE RESIN SYRUP COMPONENT OF WHICH COMPRISES A UREA-FORMALDEHYDE RESING HAVING A MOL RATIO OF UREA TO FORMALDEHYDE OF 1:L TO 1:2, AND FURFURYL ALCOHOL, SAID SYRUP HAVING A PH VALUE OF AT LEAST 7, AND THE WEIGHT RATIO OF FURFURYL ALCOHOL TO UREA-FORMALDEHYDE RESIN IS FROM 0.05:1 TO 0.5:1.
Claim 2
Dependent Claim
54 words
AN ACID HARDENABLE ADHESIVE, THE RESIN SYRUP COMPONENT OF WHICH COMPRISES A UREA-FORMALDEHYDE RESING HAVING A MOL RATIO OF UREA TO FORMALDEHYDE OF 1:L TO 1:2, AND FURFURYL ALCOHOL, SAID SYRUP HAVING A PH VALUE OF AT LEAST 7, AND THE WEIGHT RATIO OF FURFURYL ALCOHOL TO UREA-FORMALDEHYDE RESIN IS FROM 0.05:1 TO 0.5:1.
References Cited (Backward Citations)
US2366049A
Cited
US1924748A
Cited
US2197357A
Cited
US2306924A
Cited
US2321493A
Cited
US2345966A
Cited
US2313953A
Cited
US2340045A
Cited
US2335701A
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US2334526A
Cited
US2397451A
Cited
US2343973A
Cited
US2413624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |