US3340237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous condensates
Assignee: Nopco Chemical Co
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Filing: 1965-02-23
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Granted: 1967-09-05
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Sellet Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/56; C08F22/00; C08F8/00; C08F8/12; C08F8/44; C08G; C08G12/00; C08G12/02; C08G12/46; C08G73/00; C08L; C08L35/00; C08L61/00; C08L61/20; C14; C14C; C14C11/00; C14C11/003; C14C3/00; C14C3/02; C14C3/08; C14C3/22; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; C08F2800/00; C08F2800/10; Y; Y10; Y10S; Y10S525/00; Y10S525/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
AMPHOTERIC NITROGEN CONTAINING MATERIALS CONSISTING ESSENTIALLY OF CONDENSATES PREPARED BY HEATING AT REFLUX TEMPERATURES FOR ABOUT 4 TO ABOUT 6 HOURS APPROXIMATELY EQUIMOLAR QUANTITIES OF DICYANDIAMIDE AND A MEMBER OF THE GROUP CONSISTING OF ITACONIC ACID, MONOAMMONIUM SALTS THEREOF, MALEIC ACID, MONOAMMONIUM SALTS THEREOF AND MALEIC ANHYDRIDE.
Claim 2
Dependent Claim
47 words
AMPHOTERIC NITROGEN CONTAINING MATERIALS CONSISTING ESSENTIALLY OF CONDENSATES PREPARED BY HEATING AT REFLUX TEMPERATURES FOR ABOUT 4 TO ABOUT 6 HOURS APPROXIMATELY EQUIMOLAR QUANTITIES OF DICYANDIAMIDE AND A MEMBER OF THE GROUP CONSISTING OF ITACONIC ACID, MONOAMMONIUM SALTS THEREOF, MALEIC ACID, MONOAMMONIUM SALTS THEREOF AND MALEIC ANHYDRIDE.
References Cited (Backward Citations)
US2481526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |