Patent US3407942A successfully refreshed from Google Patents.
US3407942A
Expired / Lapsed
US
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Log yarding system
Assignee: Skagit Corp
•
Filing: 1967-02-23
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Granted: 1968-10-29
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Expires: 1987-02-23
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Mcintyre
- 👤 David G Rennie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:49
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1411053A
Cited
US2318218A
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US2588733A
Cited
US3043442A
Cited
US3083839A
Cited
US3172544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |