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US2790830A
Expired / Lapsed
US
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Nu-aminoalkanol substituted alkylaromatic compounds
Assignee: PPG Industries Inc
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Filing: 1954-10-21
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Granted: 1957-04-30
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Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Bader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:47
CPC Classifications
C; C07; C07C; C07C215/00; C07C215/02; C07C215/04; C07C215/06; C07C215/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
7 words
A NOVEL CHEMICAL COMPOUND OF THE FORMULA:
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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |