US3509883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding cannula
Assignee: General Electric Co
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Filing: 1967-11-29
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Granted: 1970-05-05
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Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Norman R Dibelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:15
CPC Classifications
A; A61; A61M; A61M27/00; A61M27/002; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/064; A61F2/95; A61F2/9517; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3659; A61M25/00; A61M25/0043; A61M25/005; A61M25/0053; Y; Y10; Y10T; Y10T24/00; Y10T24/39
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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |