US2490098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoropiperidine compounds
Assignee: 3M Co
•
Filing: 1948-07-14
•
Granted: 1949-12-06
•
Expires: 1968-07-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:07
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/38; C25; C25B; C25B3/00; C25B3/01; C25B3/05; C25B3/09; C25B3/11; C25B3/20; C25B3/27; C25B3/28
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) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |