US3159502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soil resistant carpet fibers
Assignee: EF Houghton and Co
•
Filing: 1962-07-16
•
Granted: 1964-12-01
•
Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Menin Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:19
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/35; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/23993; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AN ARTICLE OF MANUFACTURE COMPRISING A CARPETING FIBER HAVING ON THE SURFACE THEREOF A CATIONIC SURFACE ACTIVE AGENT HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
22 words
AN ARTICLE OF MANUFACTURE COMPRISING A CARPETING FIBER HAVING ON THE SURFACE THEREOF A CATIONIC SURFACE ACTIVE AGENT HAVING THE GENERAL FORMULA:
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |