Patent US3106969A successfully refreshed from Google Patents.
US3106969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for firming, grading and smoothing ground
Assignee: Individual
•
Filing: 1961-08-11
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Granted: 1963-10-15
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Martin F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:42
CPC Classifications
A; A01; A01B; A01B31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AN AGRICULTURAL IMPLEMENT COMPRISING A FRAME, DRAFT ATTACHMENT MEANS ON SAID FRAME, A PAIR OF SPACED PARALLEL TRANSVERSE LEDGES FACING EACH OTHER ON SAID FRAME AND A PLURALITY OF V-SHAPED MEMBERS SLIDABLY SUPPORTED IN PARALLEL RELATIONSHIP BY A PAIR OF CLIPS FACING AWAY FROM EACH OTHER AND SNUGLY ENGAGING SAID LEDGES.
Claim 2
Dependent Claim
51 words
AN AGRICULTURAL IMPLEMENT COMPRISING A FRAME, DRAFT ATTACHMENT MEANS ON SAID FRAME, A PAIR OF SPACED PARALLEL TRANSVERSE LEDGES FACING EACH OTHER ON SAID FRAME AND A PLURALITY OF V-SHAPED MEMBERS SLIDABLY SUPPORTED IN PARALLEL RELATIONSHIP BY A PAIR OF CLIPS FACING AWAY FROM EACH OTHER AND SNUGLY ENGAGING SAID LEDGES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |