US2686305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for converting chain stitch type sewing machines into machines for rooting hair into the resultant product
Assignee: Individual
•
Filing: 1953-08-26
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Granted: 1954-08-10
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Expires: 1973-08-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:44
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/02; A; A63; A63H; A63H3/00; A63H3/36; A63H3/44; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53461
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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |