US2852833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving flat goods
Assignee: Cilander AG
•
Filing: 1953-05-11
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Granted: 1958-09-23
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Mueller Hermann Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:13
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/84; D06M11/51; D06M11/55; D06Q; D06Q1/00; D06Q1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF IMPROVING FLAT MATERIAL CONTAINING SYNTHETIC THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF MECHANICALLY DEFORMING SAID FLAT MATERIAL AR ELEVATED TEMPERATURE, AND MODIFYING THE LIGHT REFLECTION CHARCTERISTICS OF AT LEAST PART OF SAID MATERIAL BY SUPERFICIALLY SWELLING SAID MATERIAL BY TREATMENT WITH AN ACID AT A TEMPERATURE BETWEEN ABOUT -30* AND ABOUT +120*C, FOR A PERIOD FROM 1 SECOND TO ABOUT 10 MINUTES, WHEREIN SAID MECHANICAL DEFORMATION STEP IS PERFORMED WHEN SAID FLAT MATERIAL IS IN THE DRY STATE, EITHER BEFORE OR AFTER SAID SWELLING STEP.
Claim 2
Independent Claim
87 words
A METHOD OF IMPROVING FLAT MATERIAL CONTAINING SYNTHETIC THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF MECHANICALLY DEFORMING SAID FLAT MATERIAL AR ELEVATED TEMPERATURE, AND MODIFYING THE LIGHT REFLECTION CHARCTERISTICS OF AT LEAST PART OF SAID MATERIAL BY SUPERFICIALLY SWELLING SAID MATERIAL BY TREATMENT WITH AN ACID AT A TEMPERATURE BETWEEN ABOUT -30* AND ABOUT +120*C, FOR A PERIOD FROM 1 SECOND TO ABOUT 10 MINUTES, WHEREIN SAID MECHANICAL DEFORMATION STEP IS PERFORMED WHEN SAID FLAT MATERIAL IS IN THE DRY STATE, EITHER BEFORE OR AFTER SAID SWELLING STEP.
References Cited (Backward Citations)
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Cited
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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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |