US3484779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coders
Assignee: Fujitsu Ltd
•
Filing: 1966-05-17
•
Granted: 1969-12-16
•
Expires: 1986-05-17
Abstract
No abstract record available.
Inventors
- 👤 Zen Iti Kiyasu
- 👤 Masao Kawashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:05
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/34; H03M1/38; H03M1/44; H03M1/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2541039A
Cited
US3041469A
Cited
US3035258A
Cited
US3216005A
Cited
US3219997A
Cited
US3225347A
Cited
US3187325A
Cited
US3161868A
Cited
US3284794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |