US3023833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1960-04-25
•
Granted: 1962-03-06
•
Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Hunnebeck Emil Mauritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR741980A
Cited
US1714044A
Cited
US1830017A
Cited
US1890029A
Cited
US2665951A
Cited
GB702707A
Cited
US2818308A
Cited
US2900041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |