Patent US2517573A successfully refreshed from Google Patents.
US2517573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of wool with beta-propiolactone
Assignee: Individual
•
Filing: 1950-03-23
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Granted: 1950-08-08
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Expires: 1970-03-23
Abstract
No abstract record available.
Inventors
- 👤 Harrison W Jones
- 👤 Harold P Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:17
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/228; D01; D01C; D01C3/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A PROCESS FOR CHEMICALLY MODIFYING WOOL COMPRISING REACTING WOOL WITH BETA-PROPIOLACTONE UNER SUBSTANTIALLY ANHYDROUS CONDITIONS.
Claim 2
Dependent Claim
15 words
A PROCESS FOR CHEMICALLY MODIFYING WOOL COMPRISING REACTING WOOL WITH BETA-PROPIOLACTONE UNER SUBSTANTIALLY ANHYDROUS CONDITIONS.
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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |