US2858992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding machine
Assignee: Specialties Development Corp
•
Filing: 1955-03-04
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Granted: 1958-11-04
•
Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Edward A Wentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:18
CPC Classifications
B; B21; B21F; B21F17/00; B21D; B21D51/00; B21D51/16; B21D51/24; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/62; B29C53/80; B29C53/8008; B29C53/8041; Y; Y10; Y10S; Y10S29/00; Y10S29/042; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US730635A
Cited
US1250436A
Cited
US2019364A
Cited
US2115636A
Cited
US2340436A
Cited
US2518967A
Cited
US2725197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |