US3260003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer or like implement for attachment to a tractor
Assignee: Individual
•
Filing: 1963-06-04
•
Granted: 1966-07-12
•
Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Rolfe Colin Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:36
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7604; E02F3/96; E02F3/961
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A TRACTOR-MOUNTED IMPLEMENT INCLUDING: A TRACTOR; REARWARDLY EXTENDING POWER-OPERATED LIFTING ARMS ON SAID TRACTOR; A FIRST FRAME INCLUDING A PAIR OF CARRYING ARMS RIGIDLY CONNECTED TOGETHER AND LYING ONE ON EITHER SIDE OF SAID TRACTOR; A WORKING HEAD MOUNTED ON SAID FIRST FRAME IN FRONT OF SAID TRACTOR; A REAR FRAME RIGIDLY ATTACHED FOR UNITARY MOVEMENT WITH SAID LIFTING ARMS; A DETACHABLE BUT RIGID CONNECTION BETWEEN SAID FIRST FRAME AND SAID REAR FRAME, A TRANSVERSE TOOL BAR PIVOTALLY ATTACHED TO SAID REAR FRAME, A TRANSVERSE TOOL BAR PIVOTALLY ATTACHED TOOL BAR; AND CORRESPONDINGLY SPACED ATTACHMENT MEANS ON SAID WORKING HEAD SUITED TO ENGAGE SAID TOOL ATTACHMENT MEANS.
Claim 2
Dependent Claim
107 words
A TRACTOR-MOUNTED IMPLEMENT INCLUDING: A TRACTOR; REARWARDLY EXTENDING POWER-OPERATED LIFTING ARMS ON SAID TRACTOR; A FIRST FRAME INCLUDING A PAIR OF CARRYING ARMS RIGIDLY CONNECTED TOGETHER AND LYING ONE ON EITHER SIDE OF SAID TRACTOR; A WORKING HEAD MOUNTED ON SAID FIRST FRAME IN FRONT OF SAID TRACTOR; A REAR FRAME RIGIDLY ATTACHED FOR UNITARY MOVEMENT WITH SAID LIFTING ARMS; A DETACHABLE BUT RIGID CONNECTION BETWEEN SAID FIRST FRAME AND SAID REAR FRAME, A TRANSVERSE TOOL BAR PIVOTALLY ATTACHED TO SAID REAR FRAME, A TRANSVERSE TOOL BAR PIVOTALLY ATTACHED TOOL BAR; AND CORRESPONDINGLY SPACED ATTACHMENT MEANS ON SAID WORKING HEAD SUITED TO ENGAGE SAID TOOL ATTACHMENT MEANS.
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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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |