US3497327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reacting flowable and gaseous materials with each other
Assignee: Individual
•
Filing: 1966-02-01
•
Granted: 1970-02-24
•
Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Kehse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:13
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/12; B; B01; B01J; B01J19/00; B01J19/0053; B01J19/006; B01J19/24; B01J19/245; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00092; B01J2219/00105; B01J2219/00108; B01J2219/00159; B01J2219/00162; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/00768
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3172922A
Cited
US2762819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |