US2938566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming solid structural members of glass fiber reinforced resin
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1956-04-26
•
Granted: 1960-05-31
•
Expires: 1976-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:11
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0003; B29C; B29C41/00; B29C41/24; B29C67/00; B29C67/0014; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/001; B29L2031/003; Y; Y10; Y10S; Y10S138/00; Y10S138/02
Claims Analysis
Total Claims: 0
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US2582294A
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US2614058A
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US2620513A
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US2682292A
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US2770007A
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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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |