Patent US2501927A successfully refreshed from Google Patents.
US2501927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anion exchange resin in antiirritation powder
Assignee: Individual
•
Filing: 1945-05-26
•
Granted: 1950-03-28
•
Expires: 1965-05-26
Abstract
No abstract record available.
Inventors
- 👤 Richard J Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K8/00; A61K8/18; A61K8/72; A61Q; A61Q1/00; A61Q1/12; A61Q17/00; A61K2800/00; A61K2800/40; A61K2800/54; A61K2800/74; A61K2800/75; Y; Y10; Y10S; Y10S260/00; Y10S260/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A COMPOSITION ADAPTED TO PREVENT SKIN IRRITATION DUE TO ALKALINE BY-PRODUCTS RELEASED FROM URINE WHICH COMPRISES A POWDERED, ACID ACTIVATED ANION EXCHANGE RESIN HAVING A PH OF 6-8 AND FINELY GROUND TALC.
Claim 2
Dependent Claim
32 words
A COMPOSITION ADAPTED TO PREVENT SKIN IRRITATION DUE TO ALKALINE BY-PRODUCTS RELEASED FROM URINE WHICH COMPRISES A POWDERED, ACID ACTIVATED ANION EXCHANGE RESIN HAVING A PH OF 6-8 AND FINELY GROUND TALC.
References Cited (Backward Citations)
GB332142A
Cited
DE378010C
Cited
GB305229A
Cited
US2185178A
Cited
US2131235A
Cited
US2194858A
Cited
US2281194A
Cited
US2341907A
Cited
US2446527A
Cited
US2354172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |