Patent US3516800A successfully refreshed from Google Patents.
US3516800A
Expired / Lapsed
US
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Synthesis reaction apparatus equipped with means for temperature control of catalyst bed
Assignee: Individual
•
Filing: 1965-08-25
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Granted: 1970-06-23
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Hisao Yamamoto
- 👤 Noboru Iwaasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:49
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; B; B01; B01J; B01J8/00; B01J8/0005; B01J8/02; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; B01J8/06; B01J8/067; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/152; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00221; B01J2208/00716; B01J2208/02; B01J2208/021; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2512586A
Cited
BE641000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |