US2812731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor borne cable layer
Assignee: MASSEY HARRIS FERGUSON Inc
•
Filing: 1953-10-28
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Granted: 1957-11-12
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Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Guy F Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/06; E; E02; E02F; E02F5/00; E02F5/02; E02F5/10; E02F5/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US628039A
Cited
US1886510A
Cited
US2118553A
Cited
US2135973A
Cited
GB557213A
Cited
GB661914A
Cited
US2673510A
Cited
US2663515A
Cited
US2722181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |