Patent US3554958A successfully refreshed from Google Patents.
Patent US4860508A successfully refreshed from Google Patents.
US4860508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flooring system and method for constructing same
Assignee: Individual
•
Filing: 1989-01-24
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Granted: 1989-08-29
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Expires: 2009-01-24
Abstract
Abstract A flooring system as disclosed which includes a substructure placed on an earth surface, which supports a floor structure. The substructure is composed of a plurality of longitudinally-extending I-beams interconnected by longitudinally-extending styrofoam blocks. A floor structure is connected to the substructure, the floor structure including flooring pieces having a long side and a short side. The flooring pieces are connected to the substructure so that the long sides extend transversely to the length of the I-beams. In an alternative embodiment, the I-beams include a support and location leg for connecting the styrofoam blocks. According to a method of the invention, the substructure and floor structure are interlocked by the criss-cross pattern described.
Inventors
- 👤 Thomas L. A. Jackson
- 👤 James L. Hamit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:02
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/01; E02D27/02; E04; E04B; E04B1/00; E04B1/0007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
87 words
A flooring system for placement on an earth surface comprising in combination: a substructure formed by joining together a plurality of longitudinally-extending I-beams having an upper flange, a bottom flange and an integrally-connecting web, said I-beams transversely connected by longitudinally extending blocks connected to the web and upper flange of said I-beams by glue, the bottom flange of said I-beams setting on the earth surface; a floor structure connected to the upper flange of said I-beams by fastening means; and a floor connected to said floor structure.
Claim 2
Dependent Claim
87 words
A flooring system for placement on an earth surface comprising in combination: a substructure formed by joining together a plurality of longitudinally-extending I-beams having an upper flange, a bottom flange and an integrally-connecting web, said I-beams transversely connected by longitudinally extending blocks connected to the web and upper flange of said I-beams by glue, the bottom flange of said I-beams setting on the earth surface; a floor structure connected to the upper flange of said I-beams by fastening means; and a floor connected to said floor structure.
Claim 3
Dependent Claim
39 words
The invention as defined in claim 1 wherein said floor structure further includes flat, rectangular plywood pieces having a long side and a short side, the floor structure mounted to the substructure transverse to the length of the I-beams.
Claim 4
Dependent Claim
22 words
The invention as defined in claim 1 wherein the blocks are connected to the I-beams by upper and lower flanges with glue.
Claim 5
Dependent Claim
18 words
The invention as defined in claim 1 wherein the floor structure is connected to the substructure by screws.
Claim 6
Dependent Claim
19 words
The invention as defined in claim 1 wherein the I-beams and blocks are selectively connected together in eight-foot lengths.
Claim 7
Dependent Claim
18 words
The invention as defined in claim 5 wherein the I-beams are separated by the blocks on sixteen-inch centers.
Claim 8
Dependent Claim
25 words
The invention as defined in claim 1 wherein said I-beams include a support flange extending perpendicularly from the web for supporting and locating the blocks.
Claim 9
Dependent Claim
16 words
The invention as defined in claim 1 wherein said blocks are made of low density plastic.
References Cited (Backward Citations)
US56563A
Cited
US274449A
Cited
US326823A
Cited
US446752A
Cited
US661336A
Cited
FR512436A
Cited
US2298184A
Cited
DE1928642A1
Cited
US3300936A
Cited
US3438312A
Cited
US3505764A
Cited
US3504472A
Cited
US3827204A
Cited
US3775918A
Cited
US3909996A
Cited
US4015432A
Cited
US4058941A
Cited
US4704052A
Cited
US4516375A
Cited
US4508472A
Cited
US4628645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |