Patent US2854346A successfully refreshed from Google Patents.
US2854346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid suspension of high density particles
Assignee: Individual
•
Filing: 1955-06-20
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Granted: 1958-09-30
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Hoyt H Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:13
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METALLIC PAINT COMPRISING: A LIQUID MEDIUM; FINELY DIVIDED METALLIC PIGMENT PARTICLES OF GREATER THAN COLLOIDAL SIZE SUSPENDED IN SAID MEDIUM; A COATING ON SAID PARTICLES OF A COLLECTOR MAKING THE PARTICLES MORE WETTABLE BY A GAS THAN BY SAID LIQUID MEDIUM; AND GAS BUBBLES ADHERING TO THE COATINGS OF THE PARTICLES TO FORM PARTICLEBUBBLE UNITS OF APPRROXIMATELY THE SAME SPECIFIC GRAVITY AS THE LIQUID MEDIUM.
Claim 2
Dependent Claim
66 words
A METALLIC PAINT COMPRISING: A LIQUID MEDIUM; FINELY DIVIDED METALLIC PIGMENT PARTICLES OF GREATER THAN COLLOIDAL SIZE SUSPENDED IN SAID MEDIUM; A COATING ON SAID PARTICLES OF A COLLECTOR MAKING THE PARTICLES MORE WETTABLE BY A GAS THAN BY SAID LIQUID MEDIUM; AND GAS BUBBLES ADHERING TO THE COATINGS OF THE PARTICLES TO FORM PARTICLEBUBBLE UNITS OF APPRROXIMATELY THE SAME SPECIFIC GRAVITY AS THE LIQUID MEDIUM.
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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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |