US3483476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Fischer and Porter Co
•
Filing: 1966-09-19
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Granted: 1969-12-09
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Expires: 1986-09-19
Abstract
No abstract record available.
Inventors
- 👤 Tamotsu Kobayashi
- 👤 Isao Asai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:17
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/024; G08; G08C; G08C19/00; G08C19/02; H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
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) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |