Patent US3411947A successfully refreshed from Google Patents.
Patent US3012958A successfully refreshed from Google Patents.
US3012958A
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Vitreous lined water tanks with sacrificial anodes
Assignee: Patrol Valve Co
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Filing: 1958-04-17
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Granted: 1961-12-12
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Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Leslie F Vixler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:24
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23F13/14; C23F13/16; F; F24; F24H; F24H9/00; F24H9/12; F24H9/13; F24H9/133; F24H9/40; F24H9/45; F24H9/455; Y; Y10; Y10S; Y10S220/00; Y10S220/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METAL WATER STORAGE TANK, A VITREOUS LINING FOR THE TANK, A METAL ANODE MOUNTED IN THE TANK, THE METAL OF THE ANODE BEING ANODIC WITH RESPECT TO THE METAL OF THE TANK, AND AN ALUMINUM SHEATH COVERING A SUBSTANTIAL PORTION OF THE SURFACE OF THE ANODE AND DISTRIBUTED THEREOVER SO AS TO LEAVE UNCOVERED SURFACE AREAS, THE METAL OF THE
Claim 2
Dependent Claim
61 words
A METAL WATER STORAGE TANK, A VITREOUS LINING FOR THE TANK, A METAL ANODE MOUNTED IN THE TANK, THE METAL OF THE ANODE BEING ANODIC WITH RESPECT TO THE METAL OF THE TANK, AND AN ALUMINUM SHEATH COVERING A SUBSTANTIAL PORTION OF THE SURFACE OF THE ANODE AND DISTRIBUTED THEREOVER SO AS TO LEAVE UNCOVERED SURFACE AREAS, THE METAL OF THE
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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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |