Patent US4479761A successfully refreshed from Google Patents.
Patent US3555762A successfully refreshed from Google Patents.
US3555762A
Expired / Lapsed
US
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False floor of interlocked metal sections
Assignee: ALUMINUM PLASTIC PRODUCTS CORP
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Filing: 1968-07-08
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Granted: 1971-01-19
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Expires: 1988-07-08
Abstract
Abstract A FALSE FLOORING INCLUDES A PLURALITY OF INTERLOCKING METAL MODULES, EACH HAVING A PAIR OF OUTER LEGS ADAPTED TO BE CONNECTED TO ENGAGE EXISTING FLOORING AND A CENTER LEG WHICH ENGAGES AN EXISTING FLOORING IN RESPONSE TO A LOAD BEING IMPARTED TO THE UPPER MODULE SURFACE. BETWEEN EACH OF THE OUTER LEGS AND THE CENTER LEGS, THERE ARE PROVIDED FIRST, SECOND AND THIRD ARMS HAVING UPWARDLY DEFLECTED ARCS. THE THIRD ARM IS CONNECTED TO THE FIRST AND SECOND ARMS BY A PAIR OF CHANNELS, HAVING SLOPING SIDE WALLS AND A DOWNWARD EXTENT CONSIDERABLY LESS THAN THE LENGTH OF THE LEGS.
Inventors
- 👤 Nicholas Joseph Costanzo Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/06; E04C; E04C2/00; E04C2/02; E04C2/08; E04F15/02161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |