Patent US3486022A successfully refreshed from Google Patents.
US3486022A
Expired / Lapsed
US
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Rotatographic radiation apparatus having compensating grid plate
Assignee: Toshiba Corp
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Filing: 1967-07-17
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Granted: 1969-12-23
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Tadayoshi Matuda
- 👤 Shigeo Endo
- 👤 Sumio Makino
- 👤 Katsumi Nagai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:02
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4429; A61B6/4435; A61B6/4441; A61B6/02; A61B6/03; A61B6/032; A61B6/40; A61B6/4035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |