US3087557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth cutter assembly
Assignee: Individual
•
Filing: 1960-03-11
•
Granted: 1963-04-30
•
Expires: 1980-03-11
Abstract
No abstract record available.
Inventors
- 👤 Gail A Hohstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:10
CPC Classifications
A; A01; A01B; A01B13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN AN EARTH CUTTER ASSEMBLY FOR A CORRUGATOR FOR FORMING TRENCHES FOR IRRIGATION, SAID CUTTER ASSEMBLY INCLUDING A HUB AND A DISC-LIKE WEB PROJECTING FROM THE HUB, SAID DISC-LIKE WEB INCLUDING FIRST SPACED FLAT BLADE MOUNTING PORTIONS ALTERNATELY PROJECTING LATERALLY FROM A PLANE THROUGH THE CENTER OF THE HUB WHICH IS NORMAL TO THE AXIS OF THE HUB, AND FLAT BLADE MOUNTING PORTIONS CONNECTING THE ADJACENT EDGES OF THE SPACED FLAT BLADE
Claim 2
Dependent Claim
72 words
IN AN EARTH CUTTER ASSEMBLY FOR A CORRUGATOR FOR FORMING TRENCHES FOR IRRIGATION, SAID CUTTER ASSEMBLY INCLUDING A HUB AND A DISC-LIKE WEB PROJECTING FROM THE HUB, SAID DISC-LIKE WEB INCLUDING FIRST SPACED FLAT BLADE MOUNTING PORTIONS ALTERNATELY PROJECTING LATERALLY FROM A PLANE THROUGH THE CENTER OF THE HUB WHICH IS NORMAL TO THE AXIS OF THE HUB, AND FLAT BLADE MOUNTING PORTIONS CONNECTING THE ADJACENT EDGES OF THE SPACED FLAT BLADE
References Cited (Backward Citations)
US2732785A
Cited
US578250A
Cited
US617607A
Cited
US1414364A
Cited
US440836A
Cited
US1050987A
Cited
DE317605C
Cited
US1641393A
Cited
US2168733A
Cited
GB590435A
Cited
US2603136A
Cited
US2654982A
Cited
US2691933A
Cited
US2750860A
Cited
US2725813A
Cited
US2701941A
Cited
GB786990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |