US2676677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic tower
Assignee: SAFEWAY STEEL PRODUCTS Inc
•
Filing: 1950-03-17
•
Granted: 1954-04-27
•
Expires: 1970-03-17
Abstract
No abstract record available.
Inventors
- 👤 Arvid A Anderson
- 👤 Robert M Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/18; E04H12/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US381672A
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US1188760A
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US1337487A
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US1735992A
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US1917011A
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US1947647A
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US2196511A
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US2183679A
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US2204671A
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US2384279A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |