US2578620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling thread tension
Assignee: Uniroyal Inc
•
Filing: 1948-04-30
•
Granted: 1951-12-11
•
Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Kurt E Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:14
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/8016; B29D; B29D99/00; B29D99/0042; B65; B65H; B65H59/00; B65H59/10; B65H59/16; D; D02; D02J; D02J1/00; D02J1/22; D02J1/227; G; G01; G01L; G01L5/00; G01L5/04; G01L5/042; G05; G05D; G05D15/00; G05D15/01; B29L; B29L2031/00; B29L2031/54; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10S; Y10S242/00; Y10S242/907; Y10S84/00; Y10S84/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB504302A
Cited
US2278510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |