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US3533809A
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Phosphate glutaraldehyde tanning of edible collagen casing
Assignee: Continental Group Inc
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Filing: 1967-11-20
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Granted: 1970-10-13
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Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Mauj A Cohly
- 👤 James W Sanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016; B; B29; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/88; B29C48/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2971814A
Cited
US3071477A
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US3034852A
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US3373046A
Cited
US3408916A
Cited
US3413130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |