US2852340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing ammonium nitrate and magnesium hydroxide
Assignee: PAUL O TOBELER
•
Filing: 1954-08-09
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Granted: 1958-09-16
•
Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 Kippe Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:27
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/14; C01F5/20; C05; C05C; C05C1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2058141A
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US2079324A
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US1986509A
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US2130240A
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US2258709A
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US2354584A
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US2288610A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |