US3446388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic tank support means
Assignee: Ryan Industries Inc
•
Filing: 1966-04-15
•
Granted: 1969-05-27
•
Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:27
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/086; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3191795A
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US3339782A
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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) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |