Patent US1728090A successfully refreshed from Google Patents.
Patent US3301148A successfully refreshed from Google Patents.
US3301148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paving block
Assignee: Individual
•
Filing: 1963-12-18
•
Granted: 1967-01-31
•
Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Schraudenbach Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:31
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
163 words
A PAVING BLOCK COMPRISING A PLURALITY OF BAR-SHAPED PARALLEL TREAD MEMBERS SPACED FROM EACH OTHER AND HAVING AT LEAST ONE TRANSVERSE GROOVE IN THE UPPER SIDE THEREOF, A PLURALITY OF PARALLEL CONNECTING WEBS EXTENDING TRANSVERSE TO SAID TREAD MEMBER, SAID CONNECTING WEBS BEING SPACED FROM ONE ANOTHER SO AS TO FORM AN OPENING THEREBETWEEN, SAID SPACED TREAD MEMBERS BEING OF A CROSS-SECTIONAL SIZE GRADUALLY DECREASING FROM THE LOWER SIDE TO THE UPPER SIDE OF THE BLOCK, EACH OF SAID TREAD MEMBERS HAVING A LENGTH GREATER THAN THE DISTANCE BETWEEN THE LATERAL OUTER SURFACES OF THE OUTER WEBS, EACH OF SAID WEBS HAVING A LENGTH GREATER THAN THE DISTANCE BETWEEN THE LATERAL OUTER SURFACES OF THE OUTER TREAD MEMBERS, ALL OF SAID TREAD MEMBERS PROJECTING WITH THEIR FULL CROSS-SECTIONAL SIZE BEYOND THE OUTER WEBS AND ALL OF SAID WEBS PROJECTING WITH THEIR FULL CROSS-SECTIONAL SIZE BEYOND THE OUTER TREAD MEMBERS, AND THE END SURFACES OF ADJACENT TREAD MEMBERS BEING ALTERNATELY INCLINED IN OPPOSITE DIRECTIONS.
Claim 2
Dependent Claim
163 words
A PAVING BLOCK COMPRISING A PLURALITY OF BAR-SHAPED PARALLEL TREAD MEMBERS SPACED FROM EACH OTHER AND HAVING AT LEAST ONE TRANSVERSE GROOVE IN THE UPPER SIDE THEREOF, A PLURALITY OF PARALLEL CONNECTING WEBS EXTENDING TRANSVERSE TO SAID TREAD MEMBER, SAID CONNECTING WEBS BEING SPACED FROM ONE ANOTHER SO AS TO FORM AN OPENING THEREBETWEEN, SAID SPACED TREAD MEMBERS BEING OF A CROSS-SECTIONAL SIZE GRADUALLY DECREASING FROM THE LOWER SIDE TO THE UPPER SIDE OF THE BLOCK, EACH OF SAID TREAD MEMBERS HAVING A LENGTH GREATER THAN THE DISTANCE BETWEEN THE LATERAL OUTER SURFACES OF THE OUTER WEBS, EACH OF SAID WEBS HAVING A LENGTH GREATER THAN THE DISTANCE BETWEEN THE LATERAL OUTER SURFACES OF THE OUTER TREAD MEMBERS, ALL OF SAID TREAD MEMBERS PROJECTING WITH THEIR FULL CROSS-SECTIONAL SIZE BEYOND THE OUTER WEBS AND ALL OF SAID WEBS PROJECTING WITH THEIR FULL CROSS-SECTIONAL SIZE BEYOND THE OUTER TREAD MEMBERS, AND THE END SURFACES OF ADJACENT TREAD MEMBERS BEING ALTERNATELY INCLINED IN OPPOSITE DIRECTIONS.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |