Patent US2494393A successfully refreshed from Google Patents.
US2494393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable appliance for use as an artificial dam in cases of rectal incontinence
Assignee: Individual
•
Filing: 1949-02-05
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Granted: 1950-01-10
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Expires: 1969-02-05
Abstract
No abstract record available.
Inventors
- 👤 Otis F Lamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/0004; A61F2/0009; A61F2/0013; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
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 |