US2612413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold support
Assignee: Individual
•
Filing: 1946-10-04
•
Granted: 1952-09-30
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis M Polak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:59
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/18; E04G1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551434A
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US786054A
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US1349093A
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US1359452A
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US1441806A
Cited
US1597095A
Cited
US1550840A
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US1740873A
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US2060953A
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US2375685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |