US2558734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread-treating apparatus
Assignee: Wyeth Holdings LLC
•
Filing: 1950-02-28
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Granted: 1951-07-03
•
Expires: 1970-02-28
Abstract
No abstract record available.
Inventors
- 👤 Cresswell Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:36
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/70; D06P3/702; D01; D01D; D01D1/00; D01D1/06; D01D10/00; D01D10/04; D01D10/0436; D01D5/00; D01D5/06; D01D5/12; D01D5/22; D01F; D01F6/00; D01F6/02; D01F6/18; D01F6/28; D01F6/38; D02; D02J; D02J1/00; D02J1/22; D02J1/223; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20; Y10S425/00; Y10S425/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1897122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |