US3091612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylated methylol benzoguanamine
Assignee: Standard Oil Co
•
Filing: 1961-08-07
•
Granted: 1963-05-28
•
Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 James R Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/42; C08G12/424; C08G12/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
TETRAKIS(ALKOXYMETHYL)BENZOGUANAMINE WHEREIN EACH ALKOXY HAS FROM 1 TO 3 CARBON ATOMS AND AT LEAST ONE ALKOXY HAS A DIFFERENT NUMBER OF CARBON ATOMS THAN THE OTHERS, SAID BENZOGUANAMINE BEING CHARACTERIZED BY THE NON-CRYSTALLINE STATE AT ORDINARY TEMPERATURES.
Claim 2
Dependent Claim
37 words
TETRAKIS(ALKOXYMETHYL)BENZOGUANAMINE WHEREIN EACH ALKOXY HAS FROM 1 TO 3 CARBON ATOMS AND AT LEAST ONE ALKOXY HAS A DIFFERENT NUMBER OF CARBON ATOMS THAN THE OTHERS, SAID BENZOGUANAMINE BEING CHARACTERIZED BY THE NON-CRYSTALLINE STATE AT ORDINARY TEMPERATURES.
References Cited (Backward Citations)
US2448338A
Cited
US2709693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |