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US3375201A
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US
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Silica gel-asbestos compositions
Assignee: Individual
•
Filing: 1965-10-20
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Granted: 1968-03-26
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Milton E Winyall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:51
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28047; B01J20/02; B01J20/10; B01J20/103; B01J20/28028; F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2900349A
Cited
US2966466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |