US3512369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrahigh-vacuum enclosure
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1968-12-13
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Granted: 1970-05-19
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Expires: 1988-12-13
Abstract
No abstract record available.
Inventors
- 👤 Alain Houyvet
- 👤 Pierre Noe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:31
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/564; B; B01; B01D; B01D8/00; F; F04; F04B; F04B37/00; F04B37/06; F04B37/08
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |