Patent US1437384A successfully refreshed from Google Patents.
US2989883A
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Method and apparatus for varying the length of material cut in response to variations in the thickness of the material
Assignee: McGraw Edison Co
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Filing: 1958-11-26
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Granted: 1961-06-27
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Expires: 1978-11-26
Abstract
No abstract record available.
Inventors
- 👤 John J Zimsky
- 👤 William B Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:16
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/006; H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0233; H01F41/024; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/05; Y10T83/444; Y10T83/4455; Y10T83/4463; Y10T83/4465; Y10T83/525; Y10T83/527; Y10T83/528; Y10T83/53; Y10T83/541; Y10T83/544; Y10T83/929; Y10T83/9411; Y10T83/9418
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |