US2882560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable floor construction
Assignee: Individual
•
Filing: 1955-03-10
•
Granted: 1959-04-21
•
Expires: 1975-03-10
Abstract
No abstract record available.
Inventors
- 👤 Plendl Stephen Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:41
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/022; E04F15/04; E04F15/02044; E04F2015/0205; E04F2015/02066; E04F2015/02072; E04F2015/02077; E04F2015/02094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR998913A
Cited
US761375A
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US841490A
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US1045219A
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US1351546A
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US1573724A
Cited
US1828193A
Cited
US1940377A
Cited
US2116737A
Cited
US2129976A
Cited
US2085215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |