US3200891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer attachment
Assignee: Individual
•
Filing: 1963-04-16
•
Granted: 1965-08-17
•
Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 John W Marron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:21
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
AN ATTACHMENT FOR A BULLDOZER BLADE COMPRISING IN COMBINATION: A FLAT PLATE HAVING A TOP SURFACE AND AN UPWARDLY AND REARWARDLY DIRECTED FRONT FLANGE DEFINING A HOOK STRUCTURE FOR ATTACHING THE FRONT PORTION OF SAID PLATE; ROD MEANS EXTENDING UPWARDLY FROM SAID TO SURFACE INTERMEDIATE THE FRONT AND REAR EDGES OF SAID PLATE AND TERMINATING IN HOOK STRUCTURES FOR SECURING THE REAR PORTION OF SIAD PLATE SO THAT SID PLATE IS ADAPTED TO BE HELD IN A POSITION SUBSTANTIALLY PARALLEL TO THE GROUND; FIRST AND SECOND SETS OF TEETH INDIVIDUALLY PIVOTED TO THE UNDERSIDE OF SID PLATE, EACH SET INCLUDING THREE TEETH RUNNING GENERALLY PARALLEL TO EACH OTHER IN A FORE AND AFT DIRECTION; FIRST AND SECOND CROSS-BARS RESPECTIVELY PIVOTED TO THE REAR PORITONS OF THE TEETH IN EACH SET; AND MEANS CARRIED BY SAID AND COUPLED TO SAID CROSS-BARS TO MOVE SAID BARS IN OPPOSITE LATERAL DIRECTIONS WHEREBY SAID FIRST
Claim 2
Dependent Claim
151 words
AN ATTACHMENT FOR A BULLDOZER BLADE COMPRISING IN COMBINATION: A FLAT PLATE HAVING A TOP SURFACE AND AN UPWARDLY AND REARWARDLY DIRECTED FRONT FLANGE DEFINING A HOOK STRUCTURE FOR ATTACHING THE FRONT PORTION OF SAID PLATE; ROD MEANS EXTENDING UPWARDLY FROM SAID TO SURFACE INTERMEDIATE THE FRONT AND REAR EDGES OF SAID PLATE AND TERMINATING IN HOOK STRUCTURES FOR SECURING THE REAR PORTION OF SIAD PLATE SO THAT SID PLATE IS ADAPTED TO BE HELD IN A POSITION SUBSTANTIALLY PARALLEL TO THE GROUND; FIRST AND SECOND SETS OF TEETH INDIVIDUALLY PIVOTED TO THE UNDERSIDE OF SID PLATE, EACH SET INCLUDING THREE TEETH RUNNING GENERALLY PARALLEL TO EACH OTHER IN A FORE AND AFT DIRECTION; FIRST AND SECOND CROSS-BARS RESPECTIVELY PIVOTED TO THE REAR PORITONS OF THE TEETH IN EACH SET; AND MEANS CARRIED BY SAID AND COUPLED TO SAID CROSS-BARS TO MOVE SAID BARS IN OPPOSITE LATERAL DIRECTIONS WHEREBY SAID FIRST
References Cited (Backward Citations)
US556313A
Cited
US620655A
Cited
US886802A
Cited
US989365A
Cited
US1945517A
Cited
US1986327A
Cited
US2885802A
Cited
US2769625A
Cited
US2840936A
Cited
US3034238A
Cited
US2992499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |