Patent US3042720A successfully refreshed from Google Patents.
US3042720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxy-alkyl-aminoacetyl xylidides
Assignee: FINE CHEMICLS OF CANADA Ltd
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Filing: 1959-05-18
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Granted: 1962-07-03
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Paabo George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:47
CPC Classifications
C; C07; C07C; C07C237/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
1 words
N,N-BIS(2-HYDROXYETHYL)-AMINOACETYL-2,6-XYLIDIDE.
Claim 2
Dependent Claim
1 words
N,N-BIS(2-HYDROXYETHYL)-AMINOACETYL-2,6-XYLIDIDE.
Claim 3
Dependent Claim
9 words
B - (2 - METHYL - 1,3 - DIHYDROXYPROPYLAMINO)-2,6-DIMETHYL-ACETANILIDE.
Claim 4
Dependent Claim
9 words
B - (2 - METHYL - 1,3 - DIHYDROXYPROPYLAMINO)-2,6-DIMETHYL-ACETANILIDE.
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |