US3433864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of extruding collagen
Assignee: United Shoe Machinery Corp
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Filing: 1966-03-08
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Granted: 1969-03-18
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Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 John H Highberger
- 👤 Robert A Whitmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:25
CPC Classifications
D; D01; D01F; D01F4/00; A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016; A61; A61L; A61L17/00; A61L17/06; A61L17/08; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/88; B29C48/919; B29C48/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2934446A
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US2934447A
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US3071483A
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US3178301A
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US3131130A
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US3294579A
Cited
US3269851A
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US3297459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |