US1603472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture and extraction of nitrogenous products from products of vegetable origin
Assignee: Individual
•
Filing: 1924-07-05
•
Granted: 1926-10-19
•
Expires: 1944-07-05
Abstract
No abstract record available.
Inventors
- 👤 Kahn Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:51
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/06; C12N1/063; A; A23; A23J; A23J1/00; A23J1/006; Y; Y10; Y10S; Y10S435/00; Y10S435/80
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) | 1929-10-18 | 1930-04-19 | 1930-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-18 | 1934-04-19 | 1934-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-18 | 1938-04-19 | 1938-10-19 | $7700.00 | Window Closed / Lapsed |