Patent US2541556A successfully refreshed from Google Patents.
US2541556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1948-02-06
•
Granted: 1951-02-13
•
Expires: 1968-02-06
Abstract
No abstract record available.
Inventors
- 👤 Truman G Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:08
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/28; E04G3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1861514A
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US284308A
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US760239A
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US903478A
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US929680A
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US984063A
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US1000738A
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US1115775A
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US1113509A
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US2007294A
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US2112837A
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US2391172A
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US2396127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |