US3522986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproduction objective
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
•
Filing: 1968-01-26
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Granted: 1970-08-04
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Expires: 1988-01-26
Abstract
No abstract record available.
Inventors
- 👤 Edgard Alfred Hugues
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:16
CPC Classifications
G; G02; G02B; G02B13/00; G02B13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE48057C
Cited
US2481639A
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US3034404A
Cited
US3014406A
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US3152210A
Cited
DE1180964B
Cited
US3394975A
Cited
US3428386A
Cited
US3428390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |