US2931353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colostomy appliance
Assignee: Individual
•
Filing: 1957-05-31
•
Granted: 1960-04-05
•
Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Harry D Kitzul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US812770A
Cited
US2176114A
Cited
US2243529A
Cited
US2292102A
Cited
US2510766A
Cited
US2786469A
Cited
US2721549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |