US2553815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator for yarn conditioning liquids
Assignee: DULKEN
•
Filing: 1947-04-09
•
Granted: 1951-05-22
•
Expires: 1967-04-09
Abstract
No abstract record available.
Inventors
- 👤 Charles F Dulken
- 👤 Helmuth C Sonntag
- 👤 Westwater George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:23
CPC Classifications
D; D06; D06B; D06B1/00; D06B1/10; D06B1/14; D06B1/148; D06B1/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |