US2881091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and manner of protecting galvanized surfaces against corrosion
Assignee: Culligan Inc
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Filing: 1955-07-25
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Granted: 1959-04-07
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Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Robert E Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:13
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; B05D2350/00; B05D2350/30; B05D2350/33; B05D2350/38; B05D2350/60; B05D2350/65; B05D2504/00; B05D2601/00; B05D2601/20; B05D2601/28; B05D7/22; B05D7/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE METHOD OF PROTECTING A GALVANIZED SURFACE AGAINST CORROSION, COMPRISING THE STEPS OF ROUGHENING THE GALVANIZED SURFACE TO INCREASE ITS SURFACE AREA AND TO REMOVER OXIDE FILMS, APPLYING A PRIMER BASE TO THE ROUGHENED SURFACE WITH SAID PRIMER BASE CONSISTING OF GRANULES OF A NON-LEAFING TYPE ALUMINUM SUSPENDED IN A VEHICLE IN WHICH THE RATIO OF ALUMINUM GRANULES IS APPROXIMATELY TWO TO FOUR TIMES THAT OF THE VEHICLE SOLIDS, APPLYING A FINISHING MATERIAL OVER SAID PRIMER BASE, AND CURING SAID FINISHING MATERIAL.
Claim 2
Independent Claim
82 words
THE METHOD OF PROTECTING A GALVANIZED SURFACE AGAINST CORROSION, COMPRISING THE STEPS OF ROUGHENING THE GALVANIZED SURFACE TO INCREASE ITS SURFACE AREA AND TO REMOVER OXIDE FILMS, APPLYING A PRIMER BASE TO THE ROUGHENED SURFACE WITH SAID PRIMER BASE CONSISTING OF GRANULES OF A NON-LEAFING TYPE ALUMINUM SUSPENDED IN A VEHICLE IN WHICH THE RATIO OF ALUMINUM GRANULES IS APPROXIMATELY TWO TO FOUR TIMES THAT OF THE VEHICLE SOLIDS, APPLYING A FINISHING MATERIAL OVER SAID PRIMER BASE, AND CURING SAID FINISHING 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) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |