Patent US2553969A successfully refreshed from Google Patents.
US2553969A
Expired / Lapsed
US
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Traction device
Assignee: Individual
•
Filing: 1947-05-20
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Granted: 1951-05-22
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Expires: 1967-05-20
Abstract
No abstract record available.
Inventors
- 👤 Hien Albert
- 👤 Maxe Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:39
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61G; A61G13/00; A61G13/009; A61H1/0218; A61H1/0222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE185229C
Cited
US890069A
Cited
US1530719A
Cited
US1747174A
Cited
US1605578A
Cited
US1804441A
Cited
US2206039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |