US2555036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalizer ladder base
Assignee: HAR JO IND RES CORP
•
Filing: 1946-07-24
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Granted: 1951-05-29
•
Expires: 1966-07-24
Abstract
No abstract record available.
Inventors
- 👤 William D Husted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190924257A
Cited
US836303A
Cited
US1276666A
Cited
US2318017A
Cited
US2289499A
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US2341465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |