Patent US3402536A successfully refreshed from Google Patents.
US3402536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slope mower vehicle
Assignee: SLOPE TRACTOR Inc
•
Filing: 1967-08-10
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Granted: 1968-09-24
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Expires: 1987-08-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Hale
- 👤 Roy S Lowrey
- 👤 Robert I Denny
- 👤 John R Wedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:02
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/28; Y; Y10; Y10S; Y10S56/00; Y10S56/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2622894A
Cited
US2821059A
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US2801511A
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US2913865A
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US2924928A
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US2949004A
Cited
US2972850A
Cited
US3286447A
Cited
US3160221A
Cited
US3199276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |