US2956653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevated false floor
Assignee: LISKEY ALUMINUM Inc
•
Filing: 1958-11-14
•
Granted: 1960-10-18
•
Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Ernest C Liskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02447; E04F15/02452; E04F15/02405; E04F15/02435; E04F15/02441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR1083938A
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US2718288A
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US2854194A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |