Patent US3468522A successfully refreshed from Google Patents.
US3468522A
Expired / Lapsed
US
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Rotatable apparatus,more particularly a rotatable kiln,for the treatment of materials
Assignee: Individual
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Filing: 1967-11-08
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Granted: 1969-09-23
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Expires: 1987-11-08
Abstract
No abstract record available.
Inventors
- 👤 Rene Bovagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:30
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/20; F27B7/22; C; C22; C22B; C22B1/00; C22B1/14; C22B1/16; C22B1/216; F27B2007/2246; F27B2007/2273; F27D; F27D1/00; F27D2001/0046; F27D2001/0056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2819130A
Cited
US3027553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |