Patent US6416549B1 successfully refreshed from Google Patents.
US2493765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of and shrinkproofing of wools with amines
Assignee: Individual
•
Filing: 1947-12-05
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Granted: 1950-01-10
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Expires: 1967-12-05
Abstract
No abstract record available.
Inventors
- 👤 Compte George C Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:01
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PROCESS FOR SHRINKPROOFING WOOL COMPRISING HEATING WOOL IN A BATH OF 100% MORPHOLINE AT A TEMPERATURE OF 90-110*C., FOR 5 TO 30 MINUTES.
Claim 2
Dependent Claim
24 words
A PROCESS FOR SHRINKPROOFING WOOL COMPRISING HEATING WOOL IN A BATH OF 100% MORPHOLINE AT A TEMPERATURE OF 90-110*C., FOR 5 TO 30 MINUTES.
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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |