US3138318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbo-molecular vacuum pump
Assignee: Safran Aircraft Engines SAS
•
Filing: 1962-04-20
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Granted: 1964-06-23
•
Expires: 1982-04-20
Abstract
No abstract record available.
Inventors
- 👤 Garnier Henri Louis
- 👤 Rubet Leonide
- 👤 Marchal Raymond Hippoly Firmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:35
CPC Classifications
F; F04; F04D; F04D19/00; F04D19/02; F04D19/04; F04D19/042; F04D29/00; F04D29/26; F04D29/32; F04D29/321; F04D29/324; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/542; F04D29/544; F05; F05D; F05D2250/00; F05D2250/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US621030A
Cited
US647856A
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US853363A
Cited
FR418198A
Cited
US1529925A
Cited
US2435236A
Cited
US2738950A
Cited
GB626780A
Cited
US2579049A
Cited
GB682418A
Cited
US2974927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |