Patent US3030412A successfully refreshed from Google Patents.
US3030412A
Expired / Lapsed
US
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Method of manufacturing ammonium nitrohumate
Assignee: Hokkaido Tanko Kisen KK
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Filing: 1960-03-15
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Granted: 1962-04-17
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Expires: 1980-03-15
Abstract
No abstract record available.
Inventors
- 👤 Higuchi Kozo
- 👤 Tsuyuguchi Michio
- 👤 Osa Tetsuro
- 👤 Ando Koji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:12
CPC Classifications
C; C08; C08H; C08H99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF MANUFACTURING AMMONIUM NITROHUMATE WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF ABOUT -33.6*C. TO 100*C. NITROHUMIC ACID IN POWDERED STATE WITH DILUTE AMMONIA GAS IN A FLUIDIZED BED, SAID DILUTE AMMONIA GAS CONTAINING AMMONIA IN AN AMOUNT LESS THAN 70% BY WEIGHT, SAID DILUTE AMMONIA GAS BEING PREPARED BY DILUTING THE AMMONIA WITH A DILUENT GAS SELECTED FROM THE GROUP CONSISTING OF AIR, NITROGEN, NATURAL GAS AND COMBUSTION WASTE GASES FROM WHICH CARBON DIOXIDE GAS HAS BEEN REMOVED.
Claim 2
Independent Claim
83 words
A METHOD OF MANUFACTURING AMMONIUM NITROHUMATE WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF ABOUT -33.6*C. TO 100*C. NITROHUMIC ACID IN POWDERED STATE WITH DILUTE AMMONIA GAS IN A FLUIDIZED BED, SAID DILUTE AMMONIA GAS CONTAINING AMMONIA IN AN AMOUNT LESS THAN 70% BY WEIGHT, SAID DILUTE AMMONIA GAS BEING PREPARED BY DILUTING THE AMMONIA WITH A DILUENT GAS SELECTED FROM THE GROUP CONSISTING OF AIR, NITROGEN, NATURAL GAS AND COMBUSTION WASTE GASES FROM WHICH CARBON DIOXIDE GAS HAS BEEN REMOVED.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |