US3174412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precast concrete curb and gutter with interlocking joint
Assignee: Individual
•
Filing: 1961-07-19
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Granted: 1965-03-23
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Curtis J Boyd
- 👤 Jr Charles H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/22; E01C11/221; E01C11/222; E01F; E01F15/00; E01F15/02; E01F15/08; E01F15/081; E01F15/083; E01F15/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PREFABRICATED UNIT FOR ROADWAYS, COMPRISING A CURB PORTION RISING FROM A GUTTER PORTION, AND COMPLEMENTARY MALE AND FEMALE COUPLING ELEMENTS ON THE RESPECTIVE ENDS OF SAID UNIT, SAID MALE ELEMENTS COMPRISING A REDUCED EXTENSION LOCATED IN THE LOWER PART OF SAID UNIT, INWARDLY OF THE SIDE THEREOF, AND HAVING AN UPWARDLY HOOKED, OUTER END, SAID UNIT HAVING A TRANSVERSE RECESS ON EACH SIDE OF SAID EXTENSION, SAID UNIT HAVING A WELL IN ITS UNDER SIDE, ON THE FEMALE END, COMPLEMENTARY TO SAID EXTENSION ON THE MALE END, AND A PAIR OF PROJECTIONS ADAPTED TO BE RECEIVED IN THE RECESSES OF THE MALE END.
Claim 2
Dependent Claim
104 words
A PREFABRICATED UNIT FOR ROADWAYS, COMPRISING A CURB PORTION RISING FROM A GUTTER PORTION, AND COMPLEMENTARY MALE AND FEMALE COUPLING ELEMENTS ON THE RESPECTIVE ENDS OF SAID UNIT, SAID MALE ELEMENTS COMPRISING A REDUCED EXTENSION LOCATED IN THE LOWER PART OF SAID UNIT, INWARDLY OF THE SIDE THEREOF, AND HAVING AN UPWARDLY HOOKED, OUTER END, SAID UNIT HAVING A TRANSVERSE RECESS ON EACH SIDE OF SAID EXTENSION, SAID UNIT HAVING A WELL IN ITS UNDER SIDE, ON THE FEMALE END, COMPLEMENTARY TO SAID EXTENSION ON THE MALE END, AND A PAIR OF PROJECTIONS ADAPTED TO BE RECEIVED IN THE RECESSES OF THE MALE END.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |