US3487884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer assembly
Assignee: Individual
•
Filing: 1969-02-17
•
Granted: 1970-01-06
•
Expires: 1989-02-17
Abstract
No abstract record available.
Inventors
- 👤 Henry Volberding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:10
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2160596A
Cited
US2224725A
Cited
US2446136A
Cited
US2749630A
Cited
FR1229238A
Cited
US2967364A
Cited
US3246406A
Cited
US3296721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |