Patent US2074547A successfully refreshed from Google Patents.
US2074547A
Expired / Lapsed
US
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Trimming machine
Assignee: PHILADELPHIA LAWN MOWER AND Manufacturing Co
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Filing: 1935-07-23
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Granted: 1937-03-23
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Expires: 1955-07-23
Abstract
No abstract record available.
Inventors
- 👤 Hermann M Hessenbruch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:27
CPC Classifications
B; B23; B23D; B23D31/00; B23D31/001; Y; Y10; Y10S; Y10S83/00; Y10S83/923; Y10T; Y10T83/00; Y10T83/202; Y10T83/2066; Y10T83/2092; Y10T83/2209; Y10T83/2218; Y10T83/384; Y10T83/39; Y10T83/395; Y10T83/40; Y10T83/401; Y10T83/444; Y10T83/447; Y10T83/4473; Y10T83/808; Y10T83/825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-03-22 | 1940-09-21 | 1941-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-22 | 1944-09-21 | 1945-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-22 | 1948-09-21 | 1949-03-23 | $7700.00 | Window Closed / Lapsed |