Patent US2762915A successfully refreshed from Google Patents.
US2546069A
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Ejector mechanism for cutting cylinders
Assignee: ROOFING MACHINERY Mfg CO
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Filing: 1948-04-28
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Granted: 1951-03-20
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Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Wallace L Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:10
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/18; B26D7/1818; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/21; Y10T83/2105; Y10T83/2107; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |