US2686764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leather-finishing compositions containing caprolactam and a resinous polymer
Assignee: EIDP Inc
•
Filing: 1951-11-09
•
Granted: 1954-08-17
•
Expires: 1971-11-09
Abstract
No abstract record available.
Inventors
- 👤 Carl H Geister
- 👤 James M Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:04
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A LEATHER-FINISHING COMPOSITION COMPRISING AN AQUEOUS EMULSION CONTAINING CAPROLACTAM AND A RESINOUS HOMOPOLYMER OF A COMPOUND FROM THE GROUP CONSISTING OF LOWER ALKYL ACRYLATES AND LOWER ALKYL METHACRYLATES, THE WEIGHT RATIO OF CAPROLACTAM TO POLYMER BEING FROM 0.01:1 TO 1.2:1.
Claim 2
Dependent Claim
40 words
A LEATHER-FINISHING COMPOSITION COMPRISING AN AQUEOUS EMULSION CONTAINING CAPROLACTAM AND A RESINOUS HOMOPOLYMER OF A COMPOUND FROM THE GROUP CONSISTING OF LOWER ALKYL ACRYLATES AND LOWER ALKYL METHACRYLATES, THE WEIGHT RATIO OF CAPROLACTAM TO POLYMER BEING FROM 0.01:1 TO 1.2:1.
References Cited (Backward Citations)
US2404719A
Cited
US2550363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |