US3055790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxylamine treatment of collagen fibers
Assignee: Armour and Co
•
Filing: 1960-10-31
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Granted: 1962-09-25
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Burde Roger De La
- 👤 Veis Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:46
CPC Classifications
C; C08; C08H; C08H1/00; C08H1/06; C09; C09H; C09H3/00; D; D01; D01F; D01F4/00; Y; Y10; Y10S; Y10S128/00; Y10S128/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A METHOD OF PREPARING COLLAGEN COMPRISING THE STEPS OF CONDITIONING AGGREGATED COLLAGEN WITH A WATER SOLUTION OF HYDROXYLAMINE UNTIL THERE IS A SUBSTANTIAL DELAMINATION OF INDIVIDUAL FIBERS FROM ONE ANOTHE, MECHANICALLY DISAGGREGATING THE FIBERS IN SAID COLLAGEN, AND COLLECTING THE DISAGGREGATED FIBERS.
Claim 2
Independent Claim
42 words
A METHOD OF PREPARING COLLAGEN COMPRISING THE STEPS OF CONDITIONING AGGREGATED COLLAGEN WITH A WATER SOLUTION OF HYDROXYLAMINE UNTIL THERE IS A SUBSTANTIAL DELAMINATION OF INDIVIDUAL FIBERS FROM ONE ANOTHE, MECHANICALLY DISAGGREGATING THE FIBERS IN SAID COLLAGEN, AND COLLECTING THE DISAGGREGATED FIBERS.
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |