Patent US5800203A successfully refreshed from Google Patents.
Patent US2622680A successfully refreshed from Google Patents.
US2622680A
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Floor cutting heater and method
Assignee: Wingfoot Corp
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Filing: 1947-12-16
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Granted: 1952-12-23
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Expires: 1967-12-16
Abstract
No abstract record available.
Inventors
- 👤 Michael A Yakubik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:14
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/20; A; A47; A47G; A47G27/00; A47G27/04; A47G27/0487; B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/84; B29C66/861; B29K; B29K2711/00; B29K2711/04; B29L; B29L2031/00; B29L2031/732; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/041; Y10T83/283
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |