US3485014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of contacting a gas with a particulate solid
Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1968-07-02
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Granted: 1969-12-23
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Expires: 1988-07-02
Abstract
No abstract record available.
Inventors
- 👤 Masumi Atsukawa
- 👤 Yoshihiko Nishimoto
- 👤 Kazuhiro Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:39
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/508
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US727030A
Cited
US1298409A
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US1825707A
Cited
US1895601A
Cited
US2231424A
Cited
GB559532A
Cited
US3150923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |