US2859166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielding means for effecting uniform plating of lead dioxide in the formation of lead dioxide electrodes
Assignee: Pennwalt Corp
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Filing: 1955-09-15
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Granted: 1958-11-04
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Expires: 1975-09-15
Abstract
No abstract record available.
Inventors
- 👤 John C Grigger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:53
CPC Classifications
C; C25; C25D; C25D9/00; C25D9/04; C25D9/06; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/054; C25D17/00; C25D17/008; Y; Y10; Y10S; Y10S204/00; Y10S204/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
SHIELDING MEANS FOR EFFECTING UNIFORM PLATING OF LEAD DIOXIDE IN THE FORMATION OF A LEAD DIOXIDE ELECTRODE, COMPRISING A RECTANGULAR BOX-LIKE BASE HAVING A TOP OPENING, AND INWARDLY-FACING VERTICAL OPPOSED CHANNEL MEMBERS EXTENDING UPWARDLY FROM THE TOP OF SAID BOXLIKE BASE ADJACENT AND ALIGNED WITH SAID TOP OPENING AND PARTIALLY SURROUNDING SAID OPENING, THE BASE BEING SUBSTANTIALLY WIDER THAN THE CHANNEL WIDTH OF SAID MEMBERS SAID SHIELDING MEANS BEING OF INSULATING MATERIAL.
Claim 2
Dependent Claim
72 words
SHIELDING MEANS FOR EFFECTING UNIFORM PLATING OF LEAD DIOXIDE IN THE FORMATION OF A LEAD DIOXIDE ELECTRODE, COMPRISING A RECTANGULAR BOX-LIKE BASE HAVING A TOP OPENING, AND INWARDLY-FACING VERTICAL OPPOSED CHANNEL MEMBERS EXTENDING UPWARDLY FROM THE TOP OF SAID BOXLIKE BASE ADJACENT AND ALIGNED WITH SAID TOP OPENING AND PARTIALLY SURROUNDING SAID OPENING, THE BASE BEING SUBSTANTIALLY WIDER THAN THE CHANNEL WIDTH OF SAID MEMBERS SAID SHIELDING MEANS BEING OF INSULATING MATERIAL.
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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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |