US3407437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning head for high pressure melt spinning
Assignee: Oerlikon Barmag AG
•
Filing: 1966-07-11
•
Granted: 1968-10-29
•
Expires: 1986-07-11
Abstract
No abstract record available.
Inventors
- 👤 Lenk Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123858A
Cited
US2589870A
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US2792122A
Cited
GB780743A
Cited
GB779787A
Cited
US2932062A
Cited
US3050774A
Cited
US3259938A
Cited
US3299470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |