Patent US2644946A successfully refreshed from Google Patents.
US2644946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corset spring
Assignee: Individual
•
Filing: 1951-04-13
•
Granted: 1953-07-14
•
Expires: 1971-04-13
Abstract
No abstract record available.
Inventors
- 👤 Menz Emil
- 👤 Schmidt Marie Wilhelmine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
A; A41; A41C; A41C1/00; A41C1/12; A41C1/14; A41C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US260915A
Cited
US1083398A
Cited
US1207104A
Cited
US1284531A
Cited
GB244948A
Cited
GB369204A
Cited
US2133004A
Cited
GB487646A
Cited
US2489388A
Cited
FR982370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |