US3477828A
Expired / Lapsed
US
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High pressure synthesis reactor for exothermic gas reactions
Assignee: BASF SE
•
Filing: 1966-06-22
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Granted: 1969-11-11
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Expires: 1986-06-22
Abstract
No abstract record available.
Inventors
- 👤 Guenther Schulze
- 👤 Karl-Heinz Heck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:18
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/04; B01J8/00; B01J8/0005; B01J8/02; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; B01J2219/00; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1943; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |