US3239106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tar and gravel laying hand cart
Assignee: Individual
•
Filing: 1963-08-12
•
Granted: 1966-03-08
•
Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Sipusic John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:50
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/21; E04; E04D; E04D15/00; E04D15/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A HAND CART FOR LAYING A COMPOSITE STRIP OF TAR AND GRAVEL AS THE CART MOVES ON A PATH OF TRAVEL, SAID CART COMPRISING: (A) A TAR RESERVOIR HAVING AN OUTLET PORT, (B) A GRAVEL RESERVOIR HAVING AN OUTLET PORT, (C) WHEELED VEHICLE MEANS HOLDING SAID RESERVOIRS IN A UNITARY ASSEMBLY AND IN TANDEM RELATION ALONG THE PATH OF TRAVEL OF THE CART, (D) VALVE MEANS FOR THE RESPECTIVE PORTS AFORESAID, AND (E) CONTROL MEANS FOR THE CONCURRENT ACTUATION OF SAID VALVE MEANS TO PRODUCE CONCURRENT FLOW OF TAR AND GRAVEL TO MERGE INTO SAID COMPOSITE STRIP AS THE CART MOVES ON ITS PATH OF TRAVEL, (F) SAID CONTROL MEANS COMPRISING MEANS FOR ADJUSTING THE RELATIVE DEGREE OF OPENING OF ONE OF SAID PORTS WITH RESPECT TO THE OTHER OF SAID PORTS.
Claim 2
Dependent Claim
132 words
A HAND CART FOR LAYING A COMPOSITE STRIP OF TAR AND GRAVEL AS THE CART MOVES ON A PATH OF TRAVEL, SAID CART COMPRISING: (A) A TAR RESERVOIR HAVING AN OUTLET PORT, (B) A GRAVEL RESERVOIR HAVING AN OUTLET PORT, (C) WHEELED VEHICLE MEANS HOLDING SAID RESERVOIRS IN A UNITARY ASSEMBLY AND IN TANDEM RELATION ALONG THE PATH OF TRAVEL OF THE CART, (D) VALVE MEANS FOR THE RESPECTIVE PORTS AFORESAID, AND (E) CONTROL MEANS FOR THE CONCURRENT ACTUATION OF SAID VALVE MEANS TO PRODUCE CONCURRENT FLOW OF TAR AND GRAVEL TO MERGE INTO SAID COMPOSITE STRIP AS THE CART MOVES ON ITS PATH OF TRAVEL, (F) SAID CONTROL MEANS COMPRISING MEANS FOR ADJUSTING THE RELATIVE DEGREE OF OPENING OF ONE OF SAID PORTS WITH RESPECT TO THE OTHER OF SAID PORTS.
References Cited (Backward Citations)
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Cited
US1723234A
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US1751565A
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US2883996A
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US2885122A
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US2956486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |