US2938323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined mower, edger, and trimmer
Assignee: Brown and Root Inc
•
Filing: 1956-02-07
•
Granted: 1960-05-31
•
Expires: 1976-02-07
Abstract
No abstract record available.
Inventors
- 👤 Jay K Livingston
- 👤 Elijah C Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:36
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2143057A
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US2200698A
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US2490171A
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US2511160A
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US2504259A
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US2480922A
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US2556790A
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FR1007559A
Cited
US2671299A
Cited
US2691264A
Cited
US2795915A
Cited
US2776844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |