Patent US2837131A successfully refreshed from Google Patents.
US2837131A
Expired / Lapsed
US
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Mushroom trimmer
Assignee: Individual
•
Filing: 1955-03-18
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Granted: 1958-06-03
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Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert P Fried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:02
CPC Classifications
A; A23; A23N; A23N15/00; A23N15/04; A23N15/045; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6476; Y10T83/6483; Y10T83/654; Y10T83/6542; Y10T83/6572; Y10T83/6577; Y10T83/6584; Y10T83/6633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306586A
Cited
US1155455A
Cited
US1166083A
Cited
US1190303A
Cited
US2476336A
Cited
US2638949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |