Patent US3473534A successfully refreshed from Google Patents.
US3473534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coilable sun blind of seeing through type
Assignee: Nihon Kentetsu Co Ltd
•
Filing: 1967-07-21
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Granted: 1969-10-21
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Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 Juichi Sida
- 👤 Morio Haki
- 👤 Tosiaki Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:16
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1268145A
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US2382566A
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US2659686A
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US2745150A
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US2855241A
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US2852143A
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US3146155A
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US3324620A
Cited
US3363666A
Cited
US3338290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |