US3317550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Di-(beta-hydroxyalkyl)-di-pyridyl-alkanes
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1965-04-26
•
Granted: 1967-05-02
•
Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Francis E Cislak
- 👤 Charles K Mcgill
- 👤 Jr George W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
DI-(BETA-HYDROXYALKYL)-DI-PYRIDYL ALKANE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
DI-(BETA-HYDROXYALKYL)-DI-PYRIDYL ALKANE OF THE FORMULA:
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |