Patent US2535846A successfully refreshed from Google Patents.
US2535846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of materials consisting wholly or partly of wool
Assignee: Tootal Broadhurst Lee Co Ltd
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Filing: 1949-09-20
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Granted: 1950-12-26
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Expires: 1969-09-20
Abstract
No abstract record available.
Inventors
- 👤 Foulds Robinson Percy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:08
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A PROCESS OF TREATING WOOL WITH CHLORINE WHICH COMPRISES PLACING IT IN CONTACT WITH SOLID BLEACHING POWDER.
Claim 2
Dependent Claim
17 words
A PROCESS OF TREATING WOOL WITH CHLORINE WHICH COMPRISES PLACING IT IN CONTACT WITH SOLID BLEACHING POWDER.
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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |