US2538743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
L-shaped wall protector
Assignee: Individual
•
Filing: 1947-11-01
•
Granted: 1951-01-23
•
Expires: 1967-11-01
Abstract
No abstract record available.
Inventors
- 👤 William L Alston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/24; E04G21/30; B; B05; B05B; B05B12/00; B05B12/16; B05B12/20; B05B12/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US292217A
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US801569A
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US1411462A
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US1491693A
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US2098005A
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US2212073A
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US2517220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |