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US3475044A
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US
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Column structure
Assignee: Speedrack Inc
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Filing: 1968-01-16
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Granted: 1969-10-28
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Expires: 1988-01-16
Abstract
No abstract record available.
Inventors
- 👤 Anthony N Konstant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:35
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/26; E04G1/00; E04G1/02; E04G1/12; Y; Y10; Y10T; Y10T403/00; Y10T403/44; Y10T403/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554011A
Cited
US2932368A
Cited
US3018900A
Cited
US3042221A
Cited
US3186527A
Cited
US3194407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |