US3396481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earthmoving machine
Assignee: WILLIAM P HOVORAK
•
Filing: 1965-09-23
•
Granted: 1968-08-13
•
Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 William P Hovorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/649; E02F3/65; E02F3/654; E02F3/659
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US294330A
Cited
US2291716A
Cited
US2356797A
Cited
US2460764A
Cited
US3210868A
Cited
US3314175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |