Patent US3499632A successfully refreshed from Google Patents.
US3499632A
Expired / Lapsed
US
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Mixing apparatus
Assignee: Sinclair Research Inc
•
Filing: 1968-02-08
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Granted: 1970-03-10
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Expires: 1988-02-08
Abstract
No abstract record available.
Inventors
- 👤 John J Piros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:16
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/30; B01; B01F; B01F35/00; B01F35/80; B01F35/83; B60G15/00; B60G15/08; B60G15/12; Y; Y10; Y10S; Y10S516/00; Y10S516/924; Y10S516/929
Claims Analysis
Total Claims: 0
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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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |