Patent US1713040A successfully refreshed from Google Patents.
Patent US3173498A successfully refreshed from Google Patents.
US3173498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivators
Assignee: Individual
•
Filing: 1963-06-17
•
Granted: 1965-03-16
•
Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Heilbrun Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:54
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A CULTIVATING IMPLEMENT FOR ATTACHMENT TO THE SHANK OF A CULTIVATOR COMPRISING: AN ELONGATED MOUNTING BRACKET PLATE; SHANK PLATES EXTENDING UPWARDLY FROM THE MID-PORTION OF SAID BRACKET PLATE IN PARALLEL RELATION TO RECEIVE SAID SHANK THEREBETWEEN; A WHEEL ANGLE MEMBER CLAMPED UPWARDLY AGAINST AND BELOW EACH EXTREMITY OF SAID BRACKET PLATE; A PAIR OF GROUND WORKING ELEMENTS EACH COMPRISING A CIRCULAR DISC; A SHAFT-RECEIVING HUB CONCENTRICALLY MOUNTED ON SAID DISC; AND A PLURALITY OF SPACED-APART TEETH MOUNTED ON AND EXTENDING OUTWARDLY FROM SAID DISC BEYOND THE PERIPHERY THEREOF, EACH OF SAID TEETH LYING IN A PLATE RADIAL TO SAID DISC AND AT AN ANGLE
References Cited (Backward Citations)
US369163A
Cited
DE384813C
Cited
US2732785A
Cited
US1355454A
Cited
US1625097A
Cited
US1713744A
Cited
US3110275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |