Patent US2559098A successfully refreshed from Google Patents.
US2559098A
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Frost shield and method of making same
Assignee: DURKEE ATWOOD CO
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Filing: 1948-11-20
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Granted: 1951-07-03
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Expires: 1968-11-20
Abstract
No abstract record available.
Inventors
- 👤 Carl F Walz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:22
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C65/00; B29C65/48; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/244; B29C66/40; B29C66/47; B29C66/472; B29C66/4722; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/834; B29C66/8341; B29C66/83431; B32; B32B; B32B27/00; B29C65/4805; B29C65/481; B29C65/4825; B29C65/50; B29C65/5007; B29C65/5021; B29C66/832; B29C66/8322; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
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) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |