US3433137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring system for synthetic surface materials
Assignee: Monsanto Co
•
Filing: 1966-12-28
•
Granted: 1969-03-18
•
Expires: 1986-12-28
Abstract
No abstract record available.
Inventors
- 👤 Zack L Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:29
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733475A
Cited
US2111448A
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US2263511A
Cited
US2350236A
Cited
US2634453A
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US2956652A
Cited
US3197821A
Cited
US3172419A
Cited
US3350092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |