Patent US3125684A successfully refreshed from Google Patents.
US3125684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attys
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:39
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10F99/00; H10F30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2109235A
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US2511914A
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CA492754A
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US1948766A
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US2114591A
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US2183256A
Cited
US2222788A
Cited
US2654043A
Cited
US2631247A
Cited
US2918584A
Cited
US2839646A
Cited
US3062964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |