US3637638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resins from maleopimaric acid and primary amines
Assignee: Hercules LLC
•
Filing: 1970-05-28
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Granted: 1972-01-25
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Expires: 1990-05-28
Abstract
Abstract NOVEL RESINOIUS COMPOUND USEFUL IN MANUFACTURE OF PRINTING INKS ARE PREPARED FROM MALEOPIMARIC ACID AND PRIMARY AMINES.
Inventors
- 👤 Martin F Sloan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:23
CPC Classifications
C; C09; C09F; C09F1/00; C09F1/04; C09D; C09D11/00; C09D11/02; C09D11/08
Claims Analysis
Total Claims: 0
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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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |