US3236163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for laying paving material
Assignee: Blaw Knox Co
•
Filing: 1959-06-19
•
Granted: 1966-02-22
•
Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Wilbert E Ackerman
- 👤 Arthur J Vandenbosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/004; E01C19/008; E01C19/48; E01C19/4866; E01C19/4873
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A PAVING MACHINE, TRACTOR MEANS ADAPTED TO MOVE ALONG A BASE AND DEPOSIT PAVING MATERIAL THEREON, SCREED MEANS RESTING UPON THE DEPOSITED PAVING MATERIAL, SCREED ARM MEANS EXTENDING FORWARDLY FROM THE SCREED MEANS AND CONNECTED TO THE TRACTOR MEANS BY A VERTICALLY SHIFTABLE CONNECTION, MEANS TO VERTICALLY ADJUST THE POINT OF CONNECTION OF THE SCREED ARM MEANS RELATIVE TO THE TRACTOR MEANS, MEANS TO MEASURE THE VERTICAL DISTANCE BETWEEN THE SCREED ARM MEANS TO A POINT FORWARD OF THE SCREED AND A REFERENCE PLANE EXTENDING GENERALLY IN THE DIRECTION OF MOVEMENT OF THE TRACTOR MEANS, AND CONTROL MEANS IN OPERATIVE CONNECTION THEREWITH AND WITH THE SCREED ARM ADJUSTING MEANS WHEREBY SAID MEASURING MEANS ACTUATES SAID CONTROL MEANS IN RESPONSE TO CHANGE IN DISTANCE BE-
Claim 2
Dependent Claim
125 words
IN A PAVING MACHINE, TRACTOR MEANS ADAPTED TO MOVE ALONG A BASE AND DEPOSIT PAVING MATERIAL THEREON, SCREED MEANS RESTING UPON THE DEPOSITED PAVING MATERIAL, SCREED ARM MEANS EXTENDING FORWARDLY FROM THE SCREED MEANS AND CONNECTED TO THE TRACTOR MEANS BY A VERTICALLY SHIFTABLE CONNECTION, MEANS TO VERTICALLY ADJUST THE POINT OF CONNECTION OF THE SCREED ARM MEANS RELATIVE TO THE TRACTOR MEANS, MEANS TO MEASURE THE VERTICAL DISTANCE BETWEEN THE SCREED ARM MEANS TO A POINT FORWARD OF THE SCREED AND A REFERENCE PLANE EXTENDING GENERALLY IN THE DIRECTION OF MOVEMENT OF THE TRACTOR MEANS, AND CONTROL MEANS IN OPERATIVE CONNECTION THEREWITH AND WITH THE SCREED ARM ADJUSTING MEANS WHEREBY SAID MEASURING MEANS ACTUATES SAID CONTROL MEANS IN RESPONSE TO CHANGE IN DISTANCE BE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |