US3377307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dressing of leather
Assignee: Bayer AG
•
Filing: 1966-07-22
•
Granted: 1968-04-09
•
Expires: 1986-07-22
Abstract
No abstract record available.
Inventors
- 👤 Kolb Gunter
- 👤 Eitel Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:29
CPC Classifications
C; C14; C14C; C14C11/00; C14C11/003; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2375140A
Cited
US2908658A
Cited
US2887410A
Cited
US2950216A
Cited
US2959821A
Cited
US3026293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |