US3511615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepwise reactor
Assignee: Rhone Poulenc SA
•
Filing: 1966-06-01
•
Granted: 1970-05-12
•
Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jean Francois Roget
- 👤 Philippe Yvon Tarbouriech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:02
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/242; B01J19/18; B01J19/1868; B01J19/1875; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00085; B01J2219/00182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3167831A
Cited
US3364988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |