US2795495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-caking ammonium sulfate nitrate
Assignee: RUBRCHEMIE AG
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Filing: 1954-10-20
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Granted: 1957-06-11
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Schmatloch Adolf
- 👤 Schaub Franz
- 👤 Schuff Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:13
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/24; C01C1/248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
PROCESS FOR THE PRODUCTION OF GRANULAR NON-CAKING AMMONIUM SULFATE NITRATE, WHICH COMPRISES CONTACTING A GRANULATED WEALKY ACID AMMONIUM SULFATE NITRATE CONTAINING AN IRON SALT WITH GASEOUS AMMONIA AND RECOVERING AMMONIUM SULFATE NITRATE SALT GRANULES CONTAINING A MEMBER SELECTED FROM THE GROUP CONSISTING OF IRON HYDROXIDE, IRON OXIDE AND MIXTURES THEREOF, PRECIPITATED SUBSTANTIALLY SOLELY AT THE SURFACE OF SAID AMMONIUM SULFATE NITRATE GRANULES.
Claim 2
Dependent Claim
62 words
PROCESS FOR THE PRODUCTION OF GRANULAR NON-CAKING AMMONIUM SULFATE NITRATE, WHICH COMPRISES CONTACTING A GRANULATED WEALKY ACID AMMONIUM SULFATE NITRATE CONTAINING AN IRON SALT WITH GASEOUS AMMONIA AND RECOVERING AMMONIUM SULFATE NITRATE SALT GRANULES CONTAINING A MEMBER SELECTED FROM THE GROUP CONSISTING OF IRON HYDROXIDE, IRON OXIDE AND MIXTURES THEREOF, PRECIPITATED SUBSTANTIALLY SOLELY AT THE SURFACE OF SAID AMMONIUM SULFATE NITRATE GRANULES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |