US3148037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeating chemical reactor apparatus
Assignee: Individual
•
Filing: 1962-01-02
•
Granted: 1964-09-08
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 George C Szego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:31
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0552; B01; B01J; B01J19/00; B01J19/18; B01J19/22; B08B9/043; B08B9/0436
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2370950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |