Patent US2945338A successfully refreshed from Google Patents.
US2945338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutter type lawn mower
Assignee: Porter Cable Machine Co
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Filing: 1958-03-24
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Granted: 1960-07-19
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Milford D Burrows
- 👤 John W Graham
- 👤 William P Barbour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:14
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D2101/00; Y; Y10; Y10S; Y10S56/00; Y10S56/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2595289A
Cited
US2568822A
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US2763977A
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US2801510A
Cited
US2780475A
Cited
US2818269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |