US2854346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid suspension of high density particles
Assignee: Individual
•
Filing: 1955-06-20
•
Granted: 1958-09-30
•
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 09:25
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.
References Cited (Backward Citations)
US1288350A
Cited
US1337548A
Cited
US1417263A
Cited
US1946077A
Cited
US2007137A
Cited
AU2149035A
Cited
US2144953A
Cited
US2240151A
Cited
US2508501A
Cited
US2587266A
Cited
US2594313A
Cited
US2593008A
Cited
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 |