Patent US2982457A successfully refreshed from Google Patents.
US2982457A
Expired / Lapsed
US
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Tubular structures
Assignee: Dal Mon Research Co
•
Filing: 1958-11-28
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Granted: 1961-05-02
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Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:49
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C53/00; B29C53/56; B29K; B29K2705/00; B29K2705/02; B29L; B29L2009/00; B29L2031/00; B29L2031/712; B29L2031/717; Y; Y10; Y10S; Y10S138/00; Y10S138/07; Y10S229/00; Y10S229/902; Y10S229/903; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2056956A
Cited
US2230987A
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US2124231A
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FR831460A
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US2461539A
Cited
US2568664A
Cited
US2861022A
Cited
US2830001A
Cited
US2838437A
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US2914091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |