Patent US2582645A successfully refreshed from Google Patents.
US2582645A
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Tile perforating machine
Assignee: BOWERSTON SHALE CO
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Filing: 1949-03-09
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Granted: 1952-01-15
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Expires: 1969-03-09
Abstract
No abstract record available.
Inventors
- 👤 Edward C Milliken
- 👤 Jay M Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/92; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/18; Y10T74/18056; Y10T74/18272; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2209; Y10T83/2213; Y10T83/444; Y10T83/4475; Y10T83/4483; Y10T83/485; Y10T83/494
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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |