US3475112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cleaning soiled poultry feathers
Assignee: Henkel AG and Co KGaA
•
Filing: 1967-04-24
•
Granted: 1969-10-28
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Karl Mahall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:07
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/16; C11D3/26; C11D3/28; D; D06; D06L; D06L1/00; D06L1/12; D06L1/16; D06M; D06M19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2937918A
Cited
US2937920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |