Patent US3227760A successfully refreshed from Google Patents.
US3227760A
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US
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N,n-mono- and di-substituted-aralkyl amines
Assignee: Velsicol Chemical LLC
•
Filing: 1962-07-10
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Granted: 1966-01-04
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Expires: 1982-07-10
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Richter
- 👤 David P Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:01
CPC Classifications
C; C07; C07C; C07C217/00; C07C217/54; C07C217/56; C07C217/58; C07C217/02; C07C217/04; C07C217/06; C07C217/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND OF THE GENERAL FOMULA
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE GENERAL FOMULA
References Cited (Backward Citations)
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US2864679A
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Cited
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Cited
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Cited
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Cited
US3072472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |