US3270429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for finishing fabrics
Assignee: Biella Shrunk Process S A S
•
Filing: 1963-12-20
•
Granted: 1966-09-06
•
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 07:15
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)
US270868A
Cited
US473398A
Cited
US1119368A
Cited
US2085222A
Cited
US2127638A
Cited
US2567940A
Cited
US2739392A
Cited
US2800724A
Cited
GB881085A
Cited
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 |