US3398944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical processing apparatus
Assignee: Macrosonics Corp
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Filing: 1966-01-28
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Granted: 1968-08-27
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Expires: 1986-01-28
Abstract
No abstract record available.
Inventors
- 👤 Boucher Raymond Marcel Gut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:02
CPC Classifications
F; F27; F27D; F27D99/00; C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; F27B; F27B3/00; F27B3/10; F27B3/22; F27B3/225; F27D21/00; F27D2021/0057; F27D2021/0085
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |