Patent US3481406A successfully refreshed from Google Patents.
US3481406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semintegral two-way plow with offset steerable tail wheel
Assignee: GLEN A WATTS
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Filing: 1966-01-27
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Granted: 1969-12-02
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Glen A Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:08
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/46; A01B3/464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US437666A
Cited
US1578084A
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CA544687A
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US683242A
Cited
FR1088573A
Cited
US2879853A
Cited
US3061020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |