US2623794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof staging apparatus
Assignee: Individual
•
Filing: 1949-06-15
•
Granted: 1952-12-30
•
Expires: 1969-06-15
Abstract
No abstract record available.
Inventors
- 👤 Charles W Osten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:12
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/24; E04G3/26; E04G3/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US232324A
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US617336A
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GB189317510A
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US786710A
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US1133878A
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US1160721A
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US1470489A
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US1894489A
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US2320538A
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US2359868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |