US2490803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning machine
Assignee: JOHN H HAYS
•
Filing: 1946-10-21
•
Granted: 1949-12-13
•
Expires: 1966-10-21
Abstract
No abstract record available.
Inventors
- 👤 Harrigan C Herbert
- 👤 William W Wetzold
- 👤 Gilbert F Norcross
- 👤 John C Van Riper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:55
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19565; Y10T74/19575; Y10T74/1958
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |