US3375255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-hydroxyalkylpiperidyl, piperidyl alkanes
Assignee: Reilly Tar and Chemical Corp
•
Filing: 1965-04-19
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Granted: 1968-03-26
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Expires: 1985-04-19
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
2026-10-31 23:11
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/10; C07D211/14; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2972617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |