Patent US4936090A successfully refreshed from Google Patents.
Patent US3343468A successfully refreshed from Google Patents.
US3343468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paving block
Assignee: Individual
•
Filing: 1965-05-13
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Granted: 1967-09-26
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Schraudenbach Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:33
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/004; E01C2201/00; E01C2201/02; Y; Y02; Y02A; Y02A30/00; Y02A30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PAVING BLOCK COMPRISING A PLURALITY OF BAR-SHAPED PARALLEL TREAD MEMBERS SPACED FROM EACH OTHER, A PLURALITY OF PARALLEL CONNECTING WEBS INTERCONNECTING SAID TREAD MEMBERS AND EXTENDING TRANSVERSE THERETO, SAID CONNECTING WEBS BEING SPACED FROM EACH OTHER IN A MANNER SUCH THAT SAID SPACED TREAD MEMBERS AND SAID SPACED CONNECTING WEBS FORM INTERMEDIATE APERTURES EXTENDING ENTIRELY THROUGH THE BLOCK FROM THE TOP TO THE BOTTOM SURFACE THEREOF, AT LEAST THE UPPER SURFACE OF SAID TREAD MEMBERS BEING BROKEN AWAY AT APPROPRIATE POINTS SO AS TO FORM A PLURALITY OF SPACED APART TRANSVERSE GROOVES, THE BOTTOM OF EACH GROOVE HAVING A NARROW CENTRAL LONGITUDINAL PORTION AND DOWNWARDLY SLANTING CHAMFERED PORTIONS ON EACH SIDE OF SAID CENTRAL PORTION WHICH MERGE INTO THE SIDE SURFACES OF SAID TREAD MEMBERS TO PROMOTE THE GROWTH OF GRASS IN SAID GROOVES UPON SAID INTERMEDIATE APERTURES BEING SUBSTANTIALLY FILLED WITH SOIL AND GRASS BEING SOWED THEREON SO AS TO FORM SOD.
Claim 2
Dependent Claim
154 words
A PAVING BLOCK COMPRISING A PLURALITY OF BAR-SHAPED PARALLEL TREAD MEMBERS SPACED FROM EACH OTHER, A PLURALITY OF PARALLEL CONNECTING WEBS INTERCONNECTING SAID TREAD MEMBERS AND EXTENDING TRANSVERSE THERETO, SAID CONNECTING WEBS BEING SPACED FROM EACH OTHER IN A MANNER SUCH THAT SAID SPACED TREAD MEMBERS AND SAID SPACED CONNECTING WEBS FORM INTERMEDIATE APERTURES EXTENDING ENTIRELY THROUGH THE BLOCK FROM THE TOP TO THE BOTTOM SURFACE THEREOF, AT LEAST THE UPPER SURFACE OF SAID TREAD MEMBERS BEING BROKEN AWAY AT APPROPRIATE POINTS SO AS TO FORM A PLURALITY OF SPACED APART TRANSVERSE GROOVES, THE BOTTOM OF EACH GROOVE HAVING A NARROW CENTRAL LONGITUDINAL PORTION AND DOWNWARDLY SLANTING CHAMFERED PORTIONS ON EACH SIDE OF SAID CENTRAL PORTION WHICH MERGE INTO THE SIDE SURFACES OF SAID TREAD MEMBERS TO PROMOTE THE GROWTH OF GRASS IN SAID GROOVES UPON SAID INTERMEDIATE APERTURES BEING SUBSTANTIALLY FILLED WITH SOIL AND GRASS BEING SOWED THEREON SO AS TO FORM SOD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |