Patent US3457484A successfully refreshed from Google Patents.
US3457484A
Expired / Lapsed
US
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Replica producing system utilizing resolvers
Assignee: Fujitsu Ltd
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Filing: 1966-03-08
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Granted: 1969-07-22
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Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 Kanryo Shimizu
- 👤 Tokiji Shimajiri
- 👤 Yoshihiro Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:58
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; B23Q35/30; B23Q35/34; B23Q35/08; B23Q35/12; B23Q35/121; B23Q35/123; B23Q2735/00; B23Q2735/02; B23Q2735/06; B23Q2735/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511956A
Cited
US2413274A
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US2410295A
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US2559575A
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US2983858A
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US3062996A
Cited
US3189805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |