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US2982379A
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Folding tower
Assignee: Up Right Inc
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Filing: 1958-06-23
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Granted: 1961-05-02
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/18; E04H12/185; E04G; E04G1/00; E04G1/34; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32221; Y10T403/32254; Y10T403/32606; Y10T403/32951; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US601438A
Cited
US1141385A
Cited
GB187372A
Cited
US1662586A
Cited
US2183251A
Cited
US2311355A
Cited
US2658776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |