US3440140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection of zirconium alloy components against hydriding
Assignee: Atomic Energy of Canada Ltd AECL
•
Filing: 1966-11-16
•
Granted: 1969-04-22
•
Expires: 1986-11-16
Abstract
No abstract record available.
Inventors
- 👤 Anton Sawatzky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:58
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/20; G21C1/00; G21C1/04; G21C1/06; G21C1/14; G21C1/16; G21C1/18; G21C1/20; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3087882A
Cited
US3132998A
Cited
DE1125561B
Cited
FR1263814A
Cited
US3106520A
Cited
US3216902A
Cited
US3278388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |