Patent US3257330A successfully refreshed from Google Patents.
US3257330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored, solid, substantially spherical gel particles and method for forming same
Assignee: OI Glass Inc
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Filing: 1963-03-25
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Granted: 1966-06-21
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Burzynski
- 👤 Robert E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:12
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A METHOD FOR FORMING COLORED, SOLID, SUBSTANTIALLY SPHERICAL GEL PARTICLES WHICH CONSISTS ESSENTIALLY F MIXING WITH AGITATION AN ORGANOTRIALKOXYSILANE OF THE FORMULA
Claim 2
Independent Claim
22 words
A METHOD FOR FORMING COLORED, SOLID, SUBSTANTIALLY SPHERICAL GEL PARTICLES WHICH CONSISTS ESSENTIALLY F MIXING WITH AGITATION AN ORGANOTRIALKOXYSILANE OF THE FORMULA
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |