US2958611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Priming of zinc surfaces
Assignee: 3M Co
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Filing: 1956-10-05
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Granted: 1960-11-01
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Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 Erwin W Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:12
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/24; B05D7/26; C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
THE METHOD OF PROVIDING A PERMANENT PROTECTIVE FINISH COAT ON A CLEAN FRESH ZINC SUBSTRATE SURFACE, COMPRISING: PRINTING THE ZINC SURFACE WITH A NON-STICKY CONTINUOUS PRIMING COAT, ABOUT 0.05-0.2 MIL IN THICKNESS, OF A RESILIENT ADHERENT RESINUOUS INTERPOLYMER OF MONOMERS CONSISTING ESSENTIALLY OF ABOUT 3-12% BY WEIGHT OF ACRYLIC ACID AND THE REMAINDER OF MONOMERIC ACRYLIC ACID ESTER OF NON-TERTIARY ALKYL ALCOHOL THE MOLECULES OF WHICH ALCOHOL HAVE FROM ONE TO FOURTEEN CARBON ATOMS, THE AVERAGE BEING ABOUT 4-10 CARBON ATOMS, AT LEAST A MAJOR PROPORTION OF SAID MOLECULES HAVING A CARBON-TO-CARBON CHAIN OF AT LEAST FOUR CARBON ATOMS TERMINATING AT THE HYDROXYL OXYGEN ATOM, SAID CHAIN CONTAINING AT LEAST ABOUT ONE-HALF THE TOTAL NUMBER OF CARBON ATOMS IN THE MOLECULE, SAID INTERPOLYMER HAVING AN INTRINSIC VISCOSITY OF ABOUT 0.7-2.5, APPLYING OVER SAID PRINTING COAT A PROTECTIVE AND DECORATIVE COATING OF OIL BASE PAINT, AND PERMITTING SAID PAINT COATING TO DRY AND HARDEN.
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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |