US2501783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble urea resins
Assignee: Arnold Hoffman & Co Inc
•
Filing: 1946-05-09
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Granted: 1950-03-28
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Expires: 1966-05-09
Abstract
No abstract record available.
Inventors
- 👤 Willard L Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2352
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE PROCESS FOR THE MANUFACTURE OF WATER SOLUBLE RESINS WHICH CONSISTS OF CONDENSING AT TEMPERATURES OF 100* TO 200*C. EQUIMOLAR QUANTITIES OF BORIC ACID AND A COMPOUND OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
32 words
THE PROCESS FOR THE MANUFACTURE OF WATER SOLUBLE RESINS WHICH CONSISTS OF CONDENSING AT TEMPERATURES OF 100* TO 200*C. EQUIMOLAR QUANTITIES OF BORIC ACID AND A COMPOUND OF THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |