US1870665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for producing exothermic reactions between gases by contact with a solid catalyzer
Assignee: NATIONALE DE RECHERCHES SUR LE TRAITEMENT DES COMBUSTIBLES Ste
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Filing: 1929-11-07
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Granted: 1932-08-09
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Expires: 1949-11-07
Abstract
No abstract record available.
Inventors
- 👤 Audibert Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:08
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/067; B01J8/0005; C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/152; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00088; B01J2208/00106; B01J2208/00115; B01J2208/00123; B01J2208/00168; B01J2208/00194; B01J2208/00265; B01J2208/00274; B01J2208/00389; B01J2208/0053; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-08-09 | 1936-02-08 | 1936-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-09 | 1940-02-08 | 1940-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-09 | 1944-02-08 | 1944-08-09 | $7700.00 | Window Closed / Lapsed |