US3434831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of spherical powders
Assignee: Olin Corp
•
Filing: 1966-09-08
•
Granted: 1969-03-25
•
Expires: 1986-09-08
Abstract
No abstract record available.
Inventors
- 👤 Walter V Knopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:24
CPC Classifications
B; B22; B22F; B22F1/00; B22F1/14; B22F1/148; Y; Y10; Y10S; Y10S75/00; Y10S75/953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179960A
Cited
US2370396A
Cited
US2857270A
Cited
GB689349A
Cited
GB818191A
Cited
GB930003A
Cited
US3214262A
Cited
US3326679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |