US2562050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1944-09-28
•
Granted: 1951-07-24
•
Expires: 1964-09-28
Abstract
No abstract record available.
Inventors
- 👤 Lankton Joel Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:56
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/348; E04B1/34869; E03; E03C; E03C1/00; E03C1/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1582881A
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US2037895A
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US1910264A
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US2168725A
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US2030024A
Cited
GB429076A
Cited
US2040725A
Cited
US2243373A
Cited
US2266035A
Cited
US2349541A
Cited
US2340323A
Cited
US2430393A
Cited
US2419319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |