US3483929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil shaping rotor
Assignee: National Research Development Corp UK
•
Filing: 1966-03-07
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Granted: 1969-12-16
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Expires: 1986-03-07
Abstract
No abstract record available.
Inventors
- 👤 Duncan Macintyre
- 👤 Ian Macpherson Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:42
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/16; A01B13/00; A01B13/08; A01B9/00; A01B9/003; G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B15/06; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/0539
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2205752A
Cited
US2299334A
Cited
US2410003A
Cited
US2627681A
Cited
US2753782A
Cited
US3328902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |