Patent US2893442A successfully refreshed from Google Patents.
Patent US2489643A successfully refreshed from Google Patents.
US2489643A
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Heating and pressing apparatus
Assignee: Goodrich Corp
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Filing: 1943-10-18
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Granted: 1949-11-29
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Expires: 1963-10-18
Abstract
No abstract record available.
Inventors
- 👤 Willson H Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81455; A; A43; A43D; A43D25/00; A43D25/06; A43D25/07; B29C35/00; B29C35/02; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29C43/32; B29C43/52; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C70/00; B29C70/88; B29C70/882; B29C2035/0211; B29C66/70; B29C66/71; B29C66/818; B29C66/8187; B29C66/81871; B29K; B29K2019/00; B29K2105/00; B29K2105/06; B29K2105/16; B29K2705/00; B29K2707/00; B29K2707/04; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/504; Y; Y10; Y10S; Y10S264/00; Y10S264/50
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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |