US2665950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable scaffold unit
Assignee: Individual
•
Filing: 1947-09-15
•
Granted: 1954-01-12
•
Expires: 1967-09-15
Abstract
No abstract record available.
Inventors
- 👤 Wallace J S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:05
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/30; E04G7/302; E04G7/303; E04G7/305; F; F16; F16B; F16B45/00; F16B45/02; F16B45/024; F16B45/026; F16B7/00; F16B7/04; F16B7/044; F16B7/22; Y; Y10; Y10T; Y10T403/00; Y10T403/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1880767A
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US1980862A
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GB489585A
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US2181784A
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US2303428A
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US2308831A
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US2419727A
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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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |