US3230043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of lead oxide hydroxide
Assignee: VARTA AG
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Filing: 1961-12-11
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Granted: 1966-01-18
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Voss Ernst
- 👤 Koenig Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:56
CPC Classifications
C; C01; C01G; C01G21/00; C01G21/02; C01G21/06; C01G21/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
92 words
A PROCESS OF PREPARING LEAD OXIDE HYDROXIDE OF THE FORMULA 5PBO-2H2/, SUITABLE FOR PREPARATION OF THE ACTIVE MASSES OF LEAD STORAGE-BATTERY PLATES, COMPRISING FORMING AN AQUEOUS SOLUTION OF PLUMBOUS OXIDE AND A PLUMBOUS SALT SELECTED FROM THE GROUP CONSISTING OF LEAD ACETATE, LEAD FORMATE, LEAD PERCHLORATE, AND LEAD NITRATE, AND THEN, WHILE MAINTAINING THE TEMPERATURE BELOW ABOUT 50*C., ADDING AT LEAST IN ABOUT A STOICHIOMETRIC AMOUNT WITH RESPECT TO THE SALT, OF AN AQUEOUS SOLUTION OF ALKALI METAL HYDROXIDE TO PRECIPITATE THE LEAD OXIDE HYDROXIDE, AND SEPARATING THE PRECIPITATED LEAD OXIDE HYDROXIDE.
Claim 2
Dependent Claim
92 words
A PROCESS OF PREPARING LEAD OXIDE HYDROXIDE OF THE FORMULA 5PBO-2H2/, SUITABLE FOR PREPARATION OF THE ACTIVE MASSES OF LEAD STORAGE-BATTERY PLATES, COMPRISING FORMING AN AQUEOUS SOLUTION OF PLUMBOUS OXIDE AND A PLUMBOUS SALT SELECTED FROM THE GROUP CONSISTING OF LEAD ACETATE, LEAD FORMATE, LEAD PERCHLORATE, AND LEAD NITRATE, AND THEN, WHILE MAINTAINING THE TEMPERATURE BELOW ABOUT 50*C., ADDING AT LEAST IN ABOUT A STOICHIOMETRIC AMOUNT WITH RESPECT TO THE SALT, OF AN AQUEOUS SOLUTION OF ALKALI METAL HYDROXIDE TO PRECIPITATE THE LEAD OXIDE HYDROXIDE, AND SEPARATING THE PRECIPITATED LEAD OXIDE HYDROXIDE.
Claim 3
Dependent Claim
85 words
A PROCESS OF PREPARING LEAD OXIDE HYDROXIDE OF THE FORMULA 5PBO-2H2O, SUITABLE FOR PREPARATION OF THE ACTIVE MASSES OF LEAD SOTRAGE-BATTERY PLATES, COMPRISING FORMING AN AQUEOUS SOLUTION OF PLUMBOUS OXIDE AND A PLUMBOUS SALT AT LEAST AS WATER SOLUBLE AS LEAD ACETATE AND THEN, WHILE MAINTAINING THE TEMPERATURE BELOW ABOUT 50*C., ADDING AT LEAST IN ABOUT A STOICHIOMETRIC AMOUNT WITH RESPECT TO THE SALT, OF AN AQUEOUS SOLUTION OF ALKALI METAL HYDROXIDE TO PRECIPITATE THE LEAD OXIDE HYDROXIDE, AND SEPARATING THE PRECIPITATED LEAD OXIDE HYDROXIDE.
Claim 4
Dependent Claim
85 words
A PROCESS OF PREPARING LEAD OXIDE HYDROXIDE OF THE FORMULA 5PBO-2H2O, SUITABLE FOR PREPARATION OF THE ACTIVE MASSES OF LEAD SOTRAGE-BATTERY PLATES, COMPRISING FORMING AN AQUEOUS SOLUTION OF PLUMBOUS OXIDE AND A PLUMBOUS SALT AT LEAST AS WATER SOLUBLE AS LEAD ACETATE AND THEN, WHILE MAINTAINING THE TEMPERATURE BELOW ABOUT 50*C., ADDING AT LEAST IN ABOUT A STOICHIOMETRIC AMOUNT WITH RESPECT TO THE SALT, OF AN AQUEOUS SOLUTION OF ALKALI METAL HYDROXIDE TO PRECIPITATE THE LEAD OXIDE HYDROXIDE, AND SEPARATING THE PRECIPITATED LEAD OXIDE HYDROXIDE.
References Cited (Backward Citations)
US1033405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |