US2959618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
m- and p-xylylene-di
Assignee: Wyandotte Chemicals Corp
•
Filing: 1958-06-09
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Granted: 1960-11-08
•
Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Kyrides Lucas Petrou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:35
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
XYLYLENE-DI-(DIALKANOLAMINES) SELECTED FROM THE GROUP CONSISTING OF M-XYLYLENE-DI-(DIALKANOLAMINES) AND P-XYLYLENE-DI-(DIALKANOLAMINES) WHEREIN EACH ALKANOL GROUP CONTAINS FROM 2 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
21 words
XYLYLENE-DI-(DIALKANOLAMINES) SELECTED FROM THE GROUP CONSISTING OF M-XYLYLENE-DI-(DIALKANOLAMINES) AND P-XYLYLENE-DI-(DIALKANOLAMINES) WHEREIN EACH ALKANOL GROUP CONTAINS FROM 2 TO 4 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |