US3063932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cracking hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1958-12-17
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Granted: 1962-11-13
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Expires: 1978-12-17
Abstract
No abstract record available.
Inventors
- 👤 John B Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:19
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2541186A
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US2727810A
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US2799359A
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US2698281A
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US2776248A
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US2871186A
Cited
US2891001A
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US2791542A
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US2895811A
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US2900324A
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US2883332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |