Patent US3037838A successfully refreshed from Google Patents.
US3037838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing granulated condensed phosphate peroxyhydrate
Assignee: Hagan Chemicals and Controls Inc
•
Filing: 1958-07-03
•
Granted: 1962-06-05
•
Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 Lindner Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:01
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/055; C01B15/16; C11; C11D; C11D17/00; C11D17/0039; C11D17/06; C11D3/00; C11D3/39; C11D3/3942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
METHOD OF MAKING GRANULATED ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE PEROXYHYDRATE COMPRISING SPRAYING A MASS OF FINELY DIVIDED SUBSTANTIALLY ANHYDROUS ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE WITH A SOLUTION OF HYDROGEN PEROXIDE, SIMULTANEOUSLY MIXING SAID PHOSPHATE AND SAID HYDROGEN PEROXIDE SOLUTION, AND RECOVERING THE GRANULATED PRODUCT HAVING AN AVERAGE THICK NESS OF ABOUT 0.1 MM. TO ABOUT 1 MM. AND HAVING BOUND IN AN ADITIVE MANNER ABOUT 0.5 MOL TO ABOUT 2.5 MOLS OF H2O2 FOR EACH MOL OF ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE.
Claim 2
Dependent Claim
82 words
METHOD OF MAKING GRANULATED ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE PEROXYHYDRATE COMPRISING SPRAYING A MASS OF FINELY DIVIDED SUBSTANTIALLY ANHYDROUS ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE WITH A SOLUTION OF HYDROGEN PEROXIDE, SIMULTANEOUSLY MIXING SAID PHOSPHATE AND SAID HYDROGEN PEROXIDE SOLUTION, AND RECOVERING THE GRANULATED PRODUCT HAVING AN AVERAGE THICK NESS OF ABOUT 0.1 MM. TO ABOUT 1 MM. AND HAVING BOUND IN AN ADITIVE MANNER ABOUT 0.5 MOL TO ABOUT 2.5 MOLS OF H2O2 FOR EACH MOL OF ALKALI METAL MOLECULARLY DEHYDRATED PHOSPHATE.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |