US2550944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for a spool of thread
Assignee: Individual
•
Filing: 1949-09-08
•
Granted: 1951-05-01
•
Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Cedric C Stack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:29
CPC Classifications
D; D05; D05B; D05B91/00; D05B91/16; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/238; Y10T225/24; Y10T225/244; Y10T225/287; Y10T225/29; Y10T225/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |