Patent US2950550A successfully refreshed from Google Patents.
US2950550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer
Assignee: Deere and Co
•
Filing: 1959-05-26
•
Granted: 1960-08-30
•
Expires: 1979-05-26
Abstract
No abstract record available.
Inventors
- 👤 John L French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2108466A
Cited
US2308535A
Cited
US2452408A
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US2557160A
Cited
US2681518A
Cited
US2749630A
Cited
US2731283A
Cited
US2827717A
Cited
US2839848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |