US1960386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ammonia manufacture
Assignee: ANONIMA IND AMMONIACA SOC
•
Filing: 1928-11-30
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Granted: 1934-05-29
•
Expires: 1948-11-30
Abstract
No abstract record available.
Inventors
- 👤 Lopez Francesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0005; C; C01; C01C; C01C1/00; C01C1/02; C01C1/04; C01C1/0405; C01C1/0417; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
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) | 1937-05-28 | 1937-11-27 | 1938-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-05-28 | 1941-11-27 | 1942-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-05-28 | 1945-11-27 | 1946-05-29 | $7700.00 | Window Closed / Lapsed |