US2493859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel-pricking means
Assignee: United Shoe Machinery Corp
•
Filing: 1947-09-20
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Granted: 1950-01-10
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Expires: 1967-09-20
Abstract
No abstract record available.
Inventors
- 👤 Clarke Thomas Baggott
- 👤 Rivington Arthur Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:38
CPC Classifications
A; A43; A43D; A43D79/00; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0237; Y10T83/0252; Y10T83/566; Y10T83/5669; Y10T83/5678; Y10T83/5787; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/75
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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |