Patent US3520082A successfully refreshed from Google Patents.
US3520082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landscape edging and erosion control device
Assignee: Individual
•
Filing: 1968-01-22
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Granted: 1970-07-14
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Mary M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:05
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US253186A
Cited
US352146A
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US606151A
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US1139515A
Cited
US1257768A
Cited
BE557844A
Cited
US3065680A
Cited
US3281988A
Cited
US3277606A
Cited
US3373668A
Cited
US3378949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |