US3432192A
Expired / Lapsed
US
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Steel pipe tower using steel pipe joints and method for assembling the same
Assignee: Asahi Kasei Corp
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Filing: 1966-01-27
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Granted: 1969-03-11
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Makoto Ito
- 👤 Kazumoto Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:20
CPC Classifications
F; F16; F16B; F16B17/00; F16B17/004; E; E04; E04H; E04H12/00; E04H12/02; E04H12/08; E04H12/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T403/00; Y10T403/34; Y10T403/341
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |