Patent US3492187A successfully refreshed from Google Patents.
US3492187A
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Filament winding and impregnation mechanism
Assignee: HENRY J HIRTZER
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Filing: 1965-09-23
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Granted: 1970-01-27
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Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Henry J Hirtzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
B; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29B15/125; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/8016; B29C53/8066; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |