Patent US2577979A successfully refreshed from Google Patents.
US2577979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold supporting structure
Assignee: Individual
•
Filing: 1948-01-28
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Granted: 1951-12-11
•
Expires: 1968-01-28
Abstract
No abstract record available.
Inventors
- 👤 Reuben E Pierson
- 👤 Charles W Herwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:20
CPC Classifications
E; E04; E04G; E04G5/00; E04G5/06; E04G17/00; E04G17/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US789174A
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US860073A
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US926013A
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US1042192A
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US1370166A
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US1449638A
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FR605156A
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FR35926E
Cited
US1982092A
Cited
US2121704A
Cited
US2332477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |