US3489659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for lithiding
Assignee: GANNON UNIVERSITY ERIE
•
Filing: 1967-07-03
•
Granted: 1970-01-13
•
Expires: 1987-07-03
Abstract
No abstract record available.
Inventors
- 👤 Newell C Cook
- 👤 Craig S Tedmon Jr
- 👤 William C Hagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:37
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/66; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE25630E
Cited
CA742190A
Cited
US2828251A
Cited
US3024175A
Cited
US3024176A
Cited
US3232853A
Cited
US3445288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |