US3062610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for shrinkproofing wool
Assignee: Kroy Unshrinkable Wools Ltd
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Filing: 1959-02-10
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Granted: 1962-11-06
•
Expires: 1979-02-10
Abstract
No abstract record available.
Inventors
- 👤 Wallace S Russon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:24
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/51; D06M11/54; D06M11/07; D06M11/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
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
Claim 2
Independent Claim
214 words
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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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |