US3451782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic reactor
Assignee: Susquehanna Corp
•
Filing: 1965-05-14
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Granted: 1969-06-24
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 William Paul Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:06
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/704; A23B2/708; A23B2/7045; B; B01; B01J; B01J19/00; B01J19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB554691A
Cited
US2391327A
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US2533945A
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US3166381A
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US3159450A
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US3313630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |