Patent US2493020A successfully refreshed from Google Patents.
US2493020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin metallic enamels
Assignee: EIDP Inc
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Filing: 1948-02-10
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Granted: 1950-01-03
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Expires: 1968-02-10
Abstract
No abstract record available.
Inventors
- 👤 Osdal Le Verne Kenneth
- 👤 Ralph E Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:31
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A COATING COMPOSITION, COMPRISING AN OILMODIFIED ALKYD RESIN VEHICLE, ALUMINUM FLAKES, AND A B-DIALKYLAMINOALKYLMETHACRYLATE POLYMER, THE LATTER BEING PRESENT IN AN AMOUNT FALLING WITHIN THE RANGE OF THE DOUBLE CURVE REPRESENTED BY .1% TO .75% WHEN IT HAS A HIGH DEGREE OF POLYMERIZATION, .25% TO 5% WHEN IT HAS A MEDIUM DEGREE OF POLYMERIZATION, AND AT LEAST .4% WHEN IT HAS HAS A LOW DEGREE OF POLYMERIZATION, THE PERCENTAGES BEING BASED ON THE ALKYD RESIN SOLIDS.
Claim 2
Dependent Claim
76 words
A COATING COMPOSITION, COMPRISING AN OILMODIFIED ALKYD RESIN VEHICLE, ALUMINUM FLAKES, AND A B-DIALKYLAMINOALKYLMETHACRYLATE POLYMER, THE LATTER BEING PRESENT IN AN AMOUNT FALLING WITHIN THE RANGE OF THE DOUBLE CURVE REPRESENTED BY .1% TO .75% WHEN IT HAS A HIGH DEGREE OF POLYMERIZATION, .25% TO 5% WHEN IT HAS A MEDIUM DEGREE OF POLYMERIZATION, AND AT LEAST .4% WHEN IT HAS HAS A LOW DEGREE OF POLYMERIZATION, THE PERCENTAGES BEING BASED ON THE ALKYD RESIN SOLIDS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |