US3471322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for filament winding
Assignee: Koppers Co Inc
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Filing: 1967-04-18
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Granted: 1969-10-07
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Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jonas Medney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:58
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/04; B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/8066; C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/16; C03C25/18; B29L; B29L2031/00; B29L2031/712; D06B2700/00; D06B2700/25
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |