US3001401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-range expansion material
Assignee: Antioch College
•
Filing: 1956-07-11
•
Granted: 1961-09-26
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Vernet Sergius
- 👤 Corwin James Fay
- 👤 Asakawa George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:50
CPC Classifications
F; F03; F03G; F03G7/00; F03G7/06; F03G7/061; F03G7/06112; F03G7/06113; Y; Y10; Y10S; Y10S236/00; Y10S236/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115502A
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US2259846A
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US2169872A
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US2214877A
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US2368181A
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US2534497A
Cited
US2598351A
Cited
US2668140A
Cited
US2847033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |