US3343923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multitubular steam-hydrocarbon reformer furnace
Assignee: Linde GmbH
•
Filing: 1965-10-21
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Granted: 1967-09-26
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robert T Regan
- 👤 Wiesenthal Peter Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:13
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2425; B01J8/00; B01J8/02; B01J8/06; B01J8/062; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/384; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00477; B01J2208/00495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2211903A
Cited
US2603559A
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US3129065A
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US3119671A
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US3172739A
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US3146075A
Cited
US3257172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |