US3432940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator-cooler apparatus for pulverized materials such as foundry sands
Assignee: ANDREE JACQUELINE LAURE RONCER
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Filing: 1967-01-19
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Granted: 1969-03-18
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Expires: 1987-01-19
Abstract
No abstract record available.
Inventors
- 👤 Robert Andre Marcel Ronceray
- 👤 Lena Sarah Ronceray
- 👤 Andree Jacqueline Lau Ronceray
- 👤 Francoise Monique Mar Ronceray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:04
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/08; F; F26; F26B; F26B15/00; F26B15/10; F26B15/20; F26B15/22; F26B17/00; F26B17/02; F26B17/06
Claims Analysis
Total Claims: 0
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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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |