US2866770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urea-formaldehyde modified with polymerizable monoamide containing olefinic unsaturation and process of making same
Assignee: EIDP Inc
•
Filing: 1954-12-17
•
Granted: 1958-12-30
•
Expires: 1974-12-17
Abstract
No abstract record available.
Inventors
- 👤 Jong Jan Ide De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:05
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; Y; Y10; Y10S; Y10S525/00; Y10S525/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A UREA-FORMALDEHYDE REACTION PRODUCT COMPRISING A POLYMETHYLENE POLYUREA CHAIN TERMINATED BY
Claim 2
Dependent Claim
11 words
A UREA-FORMALDEHYDE REACTION PRODUCT COMPRISING A POLYMETHYLENE POLYUREA CHAIN TERMINATED BY
References Cited (Backward Citations)
GB482897A
Cited
US2546841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |