Patent US5034715A successfully refreshed from Google Patents.
Patent US3270429A successfully refreshed from Google Patents.
US3270429A
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Apparatus and method for finishing fabrics
Assignee: Biella Shrunk Process S A S
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Filing: 1963-12-20
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Granted: 1966-09-06
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Alberto Pietro
- 👤 Moers Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:41
CPC Classifications
D; D06; D06C; D06C29/00; D06B; D06B5/00; D06C7/00; D06B2700/00; D06B2700/18; D06C2700/00; D06C2700/09; D06C2700/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD OF TREATING WOOL FABRIC TO OBTAIN DIMENSIONAL STABILITY AND PERMANENT SET COMPRISING THE STEPS OF: DEHYDRATING THE FABRIC TO A POINT WHERE LESS THAN 7% OF THE ORIGINAL MOISTURE IN THE FABRIC REMAINS, IMMEDIATELY THEREAFTER, PASSING DRY STEAM UNDER PRESSURE AT A CONTROLLED RATE THROUGH SAID FABRIC TO DISPLACE SUBSTANTIALLY ALL OF THE AIR HELD WITHIN SAID FABRIC, SUBJECTING SAID FABRIC TO A DRY STEAM ENVIRONMENT HAVING A PRESSURE BETWEEN APPROXIMATELY 13 AND 30 POUNDS PER SQUARE INCH ABOVE ATMOSPHERIC, AND MAINTAINING SAID DRY STEAM ENVIRONMENT FOR A PERIOD OF NO MORE THAN SUBSTANTIALLY THREE MINUTES.
Claim 2
Independent Claim
98 words
THE METHOD OF TREATING WOOL FABRIC TO OBTAIN DIMENSIONAL STABILITY AND PERMANENT SET COMPRISING THE STEPS OF: DEHYDRATING THE FABRIC TO A POINT WHERE LESS THAN 7% OF THE ORIGINAL MOISTURE IN THE FABRIC REMAINS, IMMEDIATELY THEREAFTER, PASSING DRY STEAM UNDER PRESSURE AT A CONTROLLED RATE THROUGH SAID FABRIC TO DISPLACE SUBSTANTIALLY ALL OF THE AIR HELD WITHIN SAID FABRIC, SUBJECTING SAID FABRIC TO A DRY STEAM ENVIRONMENT HAVING A PRESSURE BETWEEN APPROXIMATELY 13 AND 30 POUNDS PER SQUARE INCH ABOVE ATMOSPHERIC, AND MAINTAINING SAID DRY STEAM ENVIRONMENT FOR A PERIOD OF NO MORE THAN SUBSTANTIALLY THREE MINUTES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |