US3362618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for increasing pressure of working medium
Assignee: LEONID GRIGORIEVICH FORTINOV
•
Filing: 1965-10-18
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Granted: 1968-01-09
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Fortinov Leonid Grigorievich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:01
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/008; F04B9/00; F04B9/08; F04B9/12; F04B9/123; F04B9/127
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |