US3662026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing graft copolymers containing n,n-di(beta-hydroxyethyl) glycine salts
Assignee: Cities Service Co
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Filing: 1970-06-01
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Granted: 1972-05-09
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Expires: 1990-06-01
Abstract
Abstract A COMPOSITION COMPRISING A GRAFT COPOLYMER RESIN AND THE ALKALI METAL SALT OF N, N-DI(BETA-HDROXYETHYL) GLYCINE IS CHARACTERIZED BY IMPROVED COLOR AND GLOSS CHARACTERISTICS.
Inventors
- 👤 George L Rushton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:08
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08F279/04
Claims Analysis
Total Claims: 0
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |