US2686776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroabietyl-and dehydroabietylamino compounds
Assignee: Hercules Powder Co
•
Filing: 1953-01-30
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Granted: 1954-08-17
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Expires: 1973-01-30
Abstract
No abstract record available.
Inventors
- 👤 Gerald I Keim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:19
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/144; C23F11/146; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A STABILIZED ROZIN AMINE DERIVATIVE OF THE FORMULA
Claim 2
Dependent Claim
8 words
A STABILIZED ROZIN AMINE DERIVATIVE 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) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |