US2008017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation products of diisobutylene and phenols
Assignee: Rohm and Haas Co
•
Filing: 1932-03-23
•
Granted: 1935-07-16
•
Expires: 1952-03-23
Abstract
No abstract record available.
Inventors
- 👤 William F Hester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:09
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/12; C07C39/14; C07C37/00; C07C37/11; C07C37/14
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) | 1938-07-15 | 1939-01-14 | 1939-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-15 | 1943-01-14 | 1943-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-15 | 1947-01-14 | 1947-07-16 | $7700.00 | Window Closed / Lapsed |